Voyage Valley Of Vision, Psychedelic Conference Miami, Edelbruck German Village Iowa, Mlive Ypsilanti Crime, Articles H

I have heard both ways over the years, might depend on where you are from. - 89-8282 Price: $73.28. First order of business was to drain the tanks and give the black tank a good flushing before unbolting the valve. If this trick doesnt work it may be time to head to an RV repair shop. Fix the bolts in it and attach data cables with the main DC power supply of the RV. Our dump valves are quite stiff. A fellow camper suggested mineral oil to lubricate the dump valve. When I recover from surgery getting the MH ready for use is top of my list. now its a pleasure too open and close the valves they work nice and easy. Extend or open the rod and valve and apply the proper lubrication to the rod and run it in and out. It seems that a shot of lube directly to the valve rod is about the only practical solution, at least from our experience. Now work the valve open and closed a few times. Squeeze the flanges together and insert the four bolts and nuts. Learn how your comment data is processed. Sorry for the late reply. Make sure not to tighten the bolts too much, or you risk cracking the flanges. That doesnt mean things wont break or crack, but do what you can to prevent such issues from happening. I full time and in the winter at times. It happens to all RV owners sooner or later. WATCH VIDEO Stabilizer Jack Replacement Do-It-Yourself When it is time to replace your RV stabilizer jack, follow Matt and Bart as they demonstrate how easy it is to do this yourself. Required fields are marked *. +1. They are universal, so dont worry about getting the wrong one. The biggest way to prevent a sticky black tank valve is proper maintenance. 3 William Street Tranmere SA 5073; 45 Gray Street Tranmere SA 5073; 36 Hectorville Road, Hectorville, SA 5073; 1 & 2/3 RODNEY AVENUE, TRANMERE Our waste holding tanks are constructed of tough ABS plastic for long service life. Pump the cavity full of grease and the theory says youll keep the actuating rod freely operational. See Also:Can Different RVs Use The Same Door Key? I've had some success with 2 approaches: 1) vegetable oil and dawn liquid dish soap down the drain into the tank, and lubricant spray into the sewer outlet. This led me to put zerk grease fittings on each of my gate valves. 2006 Mobile Suites 32TK3, Mor/Ryde King Pin and I.S., 17.5" Wheels w/ H Rated Tires,Automatic Level Up, 2012 Ford F450 Lariet, 6.7 L, CC, 4WD, DRW w/ Air Bags, Reese Signature 25K Hitch. When you dump the tanks you just pull the handles. Some say that the best way to lubricate a sticky black or grey tank valve is to use WD-40 on the handle and inside the box that holds the gate valve when its open. It sounds like there is or was a build up in your black tank causing it to not drain. Oil that is just dumped into the tank while there is any water also in the tank will just float on the surface of the water, like it does in a jar of oil and water on the counter at home. We are not lost in the Woods..Just Extreme boondocking!!!!!! A stuck (or broken) holding tank valve is a really big issue if it happens, but can easily be prevented. Holding Tank Treatments; Water Hoses; Sanitation Hoses & Accessories; Toilet Paper; . What are your likely plans for 2023? By adding a Zerk fitting (grease fitting) to the dump valve assembly, they pump grease into the cavity around the steel rod. i had the same problem plus mY black tank valve wouldn't shut all the way off. There is no way to get lubrication to this seal. When was the last time you lubricated your RV black tank valve? Add Thetford RV Drain Valve Lubricant Anyways, Drill an Access Hole in the Stuck Gate Valve, Conclusion About Fixing Sticky RV Grey and Black Tank Valves, Valterra Electric RV Gate Valves (click to view on Amazon), What To Do When An RV Waste Tank (Black/Grey) Wont Drain, WD-40 Specialist (click to view on Amazon). How do you lubricate RV holding tank valves and cables? Save my name, email, and website in this browser for the next time I comment. it worked 2 weeks ago and not freezing yet. My rod is getting really hard to pull out or to seat the valve fully closed. In some cases the 1.5-inch gray valve gets sticky over time especially if the RVer is not using his RV full time. Work the valve a few times in the water to ensure all of the residue gets cleaned out. You want the dish soap to reach the gate valve at the bottom of the tank. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. My valves are due for a little lube too. What Are the Best Campgrounds in Branson, Missouri? You may want to place a bucket underneath to catch anything that might leak out. But the goal is just to keep the valve and gasket lubricated a bit. \rWe're living the RV Full-time life, documenting our travels, and together with our Badass Pomeranian Ziggy, were setting out on the road for some RV Glamping \u0026 Camping getaways. Dear Charlie, I think I saw a post a few weeks ago about something similar & he used canola oil, & dumped it in the tanks. A hole needs to be drilled in the front of the gate valve above the handle. The RVers are usually referring to the black 3-inch gate valve on their black holding tank. Now work the valve open and closed a few times. The "cable" is a solid core flex rod with a sheath several feet in length winding it's way down to the black tank gate valve. What to Do If RV Black or Grey Tank Valve Is Stuck Closed? There is a rubber seal on each side, which should be conditioned at least at the time of storage and a few times during the camping season. Soak the valves in hot water with some detergent, making sure to leave the gates open. First, go to your sewage line where you dump the gray or black tank. Mine are easy to get to. Whats the best way to lubricate a sticky dump valve? Mine are getting sticky, I am going to find that sprayer and foam adapter SOON. Now work the valve open and closed a few times. 1 of 1. Your Guide to Understanding Encore RV Resorts, The Best Good Sam Club Campgrounds in the US. Just wipe all dishes/ pans/skillets out completely with paper towels (first dry, then wet) before washing them. Thank you for stopping by. Some people recommend that you should never leave the gray valve open either, as it can allow odors from the parks sewer system up into your RV. One tip I did see is to drill a small hole above the handle and spray silicone into the hole while moving the handle in and out. Could be the valves or the cables need lubricating. An initial plus first or last name is the minimum, we're all friends here. Why? Decided to leave just a little in the tanks to sit against the valves through the winter to keep them from drying out instead of antifreeze. Click Here to Login Forest River recalls some trailers for fridge fire risk, ST-type tire speed ratings One mans opinion. 1450 East Vienna Street, Anna, IL 62906. ALTERNATE METHOD Install a grease zerk or access port so the valve can be lubricated without removing the valve. Learn more. Wish I could find something that is good durning cold weather. This will not show on your comment but is for us to contact you if necessary. If youve tried the suggestions below and the gate valve is still sticky or stuck closed it could be an issue with the cable and not the valve. This trick could get very messy, especially if you are working on the black tank valve. Sometimes the door (RV waste water valve) has issues, causing nasty leaks to happen. Remove the seals from the flanges and inspect both of the seals and the flanges for cracks or abrasion. If the tank is almost full you might not be able to add any extra water, but thats ok. Leave a little space in the tank so the liquid and waste inside can slosh around and mix up the dish soap. Your real email is required. You can revoke your consent any time using the Revoke consent button. Regardless of your choice of lubrication approaches, you need to keep an eye on the valve handle. This short video will show you how to easily lubricate your RV dump valves without having to disassemble the plumbing pipes and valves. Pull the T handle all the way out, spray the metal rod, slide it in, pull it out again, spray the metal rod, slide it in, etc., etc. See Also:How To Maintain RV Holding Tanks To Prevent Clogs & Odors. RV Waste Superstore - On Sale Now! 2 blacks, 2 grays. Holding the piping/flanges apart, insert the valve between the flanges being sure NOT to move the seals. Please follow these rules when commenting on RVtravel.com. Diane. See the detail from Valterras Installation Sheet to make sure your cable is installed properly or has not loosened up from a secure area. Made with a special biodegradable formula, Thetfords gate valve lubricant is safe to use in RV plumbing and holding tanks. I would do this as I was waiting for the tanks to dump not sure but I think they are starting to work easier. A lot of old-timers use mineral oil or even cooking oil, like vegetable oil. But what if the valves are stuck closed and you have full holding tanks? It might still be pretty hard to open but hopefully, enough of the lubricant was able to get inside the valve to loosen it. As an Amazon Associate we earn from qualifying purchases. Save my name and email in browser cookies for the next time I comment so I won't have to enter that information again. But if youre in a tough situation with an RV holding tank valve that wont open when you need to dump your RV its a simple trick you can try. I installed screws into drilled out holes to seal them in between adding lube. We do try our best (time permitting) to keep most music in our videos original. Only lubricated 2 times but started sticking after all these years. Where to Find the Best RV Couch Replacements, Walmart Alternatives for Free Overnight RV Parking, Dog Camping Tents Your Pet Will Actually Love, Dow Corning 111 O-Ring Silicone Lubricant (5.3 oz. When you spray your slide-outs with lubricant each month, go ahead and spray your black tank valve as well. Thetford makes a lot of RV products, including toilets and portable holding tanks. Sometimes a simpler solution is all thats necessary. A small T-shaped handle allows you to grab the rod and pull back the gate, permitting the contents to flush forth. The correct grease is molycoat 111 from dow corning I believe. This keeps the gate space and pull rod seal lubricated. They recommend using 1/5th of the bottle with 4 gallons of water. Make sure your tanks are empty and clean. The valve is located against the trailer frame and just behind the rear tire just above the plastic covering. Keep both the grey and black dump valve closed until one or both tanks need to be emptied. Then when done with gray valve, removed oil from trap and used it down the toilet for the black tank valve. If your valve is getting stuck, you might need to replace it down the road anyway. NPS calls out YouTube and TikTok users. Any petroleum based lubricant can cause seal damage, cracking and swelling. I have keep my valve at the 5:00 oclock position but first spray with silicone been that way since 2013 now 2021. Thanks for your interest. Just replaced all three pull cablesturned out to be a relatively simple jobat least that's what DH saidLOL! JavaScript is disabled. Close the gate and apply a thin coating of grease to both sides. RV Lock Replacement, Best Portable Power Station/Solar Generator For Camping, Best Septic Safe RV Toilet Paper Brands Reviewed, How To Maintain RV Holding Tanks To Prevent Clogs & Odors, XGIMI Halo+ Review A Smart & Portable Projector, Bodega T50 Dual Zone Portable Car Fridge Freezer Review, Elecaenta 120W Portable & Foldable Solar Panel Test & Review, Timeusb 12V/24V Battery DC USB Hub Full Review & Test, Timeusb 12V 100Ah LiFePO4 Pro Tested & Reviewed, Can of lubricant (preferably waterproof silicone like. Thats all. Do not use WD-40 as it will remove the lubricant that came with it and is inside the housing. Go to Valtera's website and see what they recommend. After emptying your tank, work the valve open and closed a few times and then close it. There may be others I don't know. One way to unstick your RV black tank valve is to put Dawn dish soap and water in your black tank and then drive around. This will then lube the valve seals. This spray is sticky and could cause issues with your seals down the road. shot in dark but maybe you have answer. Let the lubricant sit for a few minutes so it has time to work on the gate inside the valve. First, keep the rod well lubricated. First, keep the rod well lubricated. Long time ago a tech told me to use water pump lubricant in the waster water tanks to keep seals pliable and free. How to Market Your Business with Webinars. Whether youre a newbie or seasoned RVer, with all of the gunk and grime in your RV black tank, you might have to deal with a stuck valve at some point. Its called, Youve got no place to go if your holding tank valves wont open.. maybe a zit, but thats another problem for my teen years, Its been corrected. Let sit for a few minutes and then exercise the valve by opening and closing a few times. How to Install Cable Operated RV Dump Valve? The gate valves that open the black and grey tanks start to get difficult to open and close. The veggie oil is a gallon jug the cheapest (~$5) stuff from Walmart or similar store. How to conquer the fear of breaking down in remote areas, Lawsuit could upend operations of Recreation.gov, Montana moves to save some campsites from filling up with out-of-staters, Fact-checking, ethics & corrections policy. On ours, it took putting about 1/2 gallon of oil in each tank and running it through twice to get them loosened up real good. Safe travels, Once a year I dump some vegetable oil down each waste water tank as well as use the usual supplied straw that comes with every can of spray lube and force some lube by the handle end of the cable. First, keep the rod well lubricated. Then dump in as much water as you can. Then you can screw a sheet metal screw into the . Why Do People Put Pool Noodles on Their RV Slideouts? This will then lube the valve seals. Thats at least a 40+ year old trick and a great one to suggest to those who havent thought of it. Remove from the valve with an Allen wrench and stretch to size, use a piece of tape to mark the proper length don't forget to measure the operating length of the inner cable.Remove the entire cable and take it to a table grinder then carefully twist the outer cable while grinding without damaging the inner cable until it's cut off. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The RVers are usually referring to the black 3-inch gate valve on their black holding tank. This method is kind of a long shot, especially if youre trying to unstick the black tank valve. thr handle works but it is out but nothing coming out. Carol & Jeff Savournin Usta have a '93 U225 36', Usta have a '95 U320 40', Usta have a '02 U320 40' The front gray drains out of the same outlet as the 2 black tanks. there's no adjustment for the RV sewer dump valve cables. I did not use much and I only worked the rod a little, being unsure if I was performing a useful process. Replacing your valve is not expensive, and you can do it yourself. Little did I know theres actually a simple fix to this issue that will also help keep the valves opening easily in the future. How long should a dryer heating element last? A little plastic gate rides between two rubber seals (one on the outside of the gate and one on the inside), preventing the stuff from rolling out. Use this lubricant at the start, middle, and end of the camping season to maintain the gate valves so they open and close easily all season long. Were Jenni and Jesse. Glad to hear it worked for you. We occasionally update our terms and privacy policies pages so if you have not read them lately, we encourage you to do so. View Details. The Glamping Guys 6.73K subscribers Subscribe 8.7K views 2 years ago #gaycouple #rvlifestyle. 29 plumtrees road newtown, ct; popular subdivision names; how to cite the implicit association test Free shipping on orders over $100! Dear Dave, Its completely normal for this to happen. IF possible, reposition the valves so the valve body is above the 3 9 oclock position so the water that seeps into the valve body will drain back into the bottom of the pipe. When RV heat is on, cabinets and counters get hot. If the rod gets stuck, or the handle breaks, you have a decidedly difficult issue. RV Mirrors; RV Window Parts . The process of lubricating the valve is simple. Should You Camp at the Thousand Trails Chehalis Resort? american ninja warrior tryouts 2022 locations. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. I would think that those were two different characteristics to take into consideration. My waste tank valves have gotten quite stiff. Mix it up by driving around some, then open and close the valve a few times keeping as much mixture in the tank as possible, then let it sit overnight. Only downside is that the 303 is more expensive than either of the others. But unless the choice of lubricants is one that will go into suspension with water, the lube will simply float on the top of the tank water and hang out there until you finally dump the tank. In some cases the 1.5-inch gray valve gets sticky over time especially if the RVer is not using his RV full time. Eco-Save Original Formula is a cleaner and odor remover that's said to be safe for all RV holding tanks. This gets the lubricant inside and around the valve. I am in campground with blk tank maybe 3/4 full. Once a year I dump some vegetable oil down each waste water tank as well as use the usual supplied straw that comes with every can of spray lube and force some lube by the handle end of the cable. Access to the valves is actually easy without cutting the Coroplast. The cable is very difficult to push/pull and due to it's position, directly under the water hose connection, gets some corrosion. Its not something you want to deal with as an RVer because of the nature of the beast but its a reality. By Doug Swarts Enclosed and heated dump valves; Docking station: easy winterization, Hot and cold spray port, black Tank flush, pull valves for tanks; Large tinted windows with 80/20 UV prohibitor; E-Z LUBE Dexter axles; Dexter Nev-R-Adjust brakes; Hickory Springs radius triple steps with 9" riser (no pinched fingers) Dometic "One-Touch" electric awning with . You have 24 hours to edit a comment. If you use a grease zerk be sure you do not apply too much grease or the valve will be hard to pull and push open or close. Detailed instructions can be found here. If you want to edit a comment click the gear icon to the right of your comment and choose edit, or delete. What do you do when your RV black tank valve gets stuck? By continuing to use our site, you consent to accepting cookies. A very simple and inexpensive procedure is used that takes about 5 minutes to perform. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Copyright 20082023 RV LIFE. ,weather-shield package,forced air heated & enclosed underbelly-enclosedheated gate valves,360 radiant bubble foil insulation,radiant bubble foil insulation wrapped tanks-(360=rooffloorfront/rear walls,reflective pvc roof membrane . No anonymous comments. 2) spray lube on the valve plungers. The hold should be about as big as the straw on the lube can. It has a door where you gain access to the city water inlet, fresh water tank fill, cable hookup, dump handles, and tank flush. The system I am familiar with uses molydinum in suspension. When your RV black tank valve gets harder to open, you dont want to wait until it breaks. I dont know if this will cure your problem but it wont hurt. A plug would work better as you can spray silicon spray into the hole then plug it again. What to do about sticky valve handles in RV? I agree with Gerald. Next, remove the valves from the flanges that hold them in place in the piping. If you can get it open, dump your RV. Then remove the screw and fill the valve with lubricant while the gate valve is open. Here's a video showing how how to lub your waste valves. Around the Campfire: Who advocates for RVers? Last update on 2023-03-04 / Affiliate links / Images from Amazon Product Advertising API, Your email address will not be published. We have heard from a number of our customers that speculate this would be the answer to solve their problems once and for all. . He said that usually the issue isn't the cable, but the gate valve & rubber seals. Thetford has a great product we have used for several years called the Drain Valve Lubricant. The cables were also fairly level with no sharp bends. We travel full time in our RV and write about what we learn and share our experiences. How to Fix Your RV Water Pump Check Valve. Keep your tanks flushed out with clear water as often as possible. Please be as brief as possible. But then, I'm not a chemical engineer either. You can install cable-operated RV dump valves by connecting them with the flanges. Your ice cube tray does a lot more than just make ice, Holy federal film permit, Batman! We'll see how long it lasts. 2 Pro-Series S2VT valves with dual port modules, waterproof IP66 rated; 1 Double Switch Panels; 2 Single switches, sealed IP66, Carlingtech; 4 Interface Cables, IP 66, 20 Ft; Seals, Lube and Hardware for 2 valves; If the RV has three holding tanks, you need a Two Valve Kit plus the Single Valve Kit. When you empty the waste tanks in your RV, the dump valve plays a significant role. I do think it is a good idea to occasionally dump some recommended conditioner down both the black and gray water tanks to lubricate and condition the rubber seal that the spade valve slides in and out of. Replace it if it cracks, or if any part of it breaks off. Mor Ryde Disk Brakes - ALL 4 CALIPER TO AXLE TUBE BOLTS/NUTS WERE MISSING!!! No anonymous comments. Price: $36,895. We use a variety of \"free\" music resources, but one of our favorites is www.bensound.com \rQuestions about our editing \u0026 music?\rInquire at e-mail below.\r\r\r****************\rCAMERA GEAR\r****************\rCanon G7X Mark II\riPhone XS MAX\rZhiyun Smooth 4 Gimbal\rDJI Mavic 2 Pro Drone\rRode VideoMic\r\r\r************ \rTRUCK/RIG\r************\r2015 FORD Powerstroke 350 Diesel\r2018 Grand Design Solitude 344GK-R 37ft Fifth Wheel\r\r\r***************\rSOUNDCLOUD\r***************\rBy popular demand, here's The Glamping Guys Soundtrack! Please support our sponsors and let them know you heard about their products on iRV2. Then when done with gray valve, removed oil from trap and used it down the toilet for the black tank valve. It is recommended to occasionally lubricate the rod with a dry lube such as 3-in-1 spray or CRC. Also never put any solids or organic matter down our kitchen sink so our grey tank stayed odor free. Thetford has a great product we have used for several years called the Drain Valve Lubricant. Maybe others will chime in soon. Make sure to hold the flanges tight against the valve during this process. RV drain valve lubricant is dumped into the grey and black tank. Even though its meant to be used on empty RV holding tanks theres a chance RV drain valve lubricant will work anyways. There are two moving parts on RV gate valves. Then we pull each valve a few times to lubricate the action. I keep the cables lubed the best i can with silicone lube. PHOTOS COMING SOON! Last year in Texas I started to squirt a lubricating/penetrating oil into each one of the cables where they pass through the dock center (if that makes sense). vinessa vidotto parents. They work good now. Thanks for the comment! This photo shows the drain pipe bayonet with the lever just to the left and a long rod dangling with little support. Once you detach the valve, clean around the seals and gaskets. How do you lubricate RV holding tank valves and cables? New cables work MUCH better than the OEMS ever did. Drain Tanks and Unbolt Waste Valves. Some say that the best way to lubricate a sticky black or grey tank valve is to use WD-40 on the handle and inside the box that holds the gate valve when it's open. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Get exclusive tips and tricks to save your money and time in the RV lifestyle! The BestCounty Park CampgroundsFor RVe Where Can I Have Packages Delivered While On The R Don't Miss Carolina Pines RV Resort In South Carol Know How To Prevent A Space Heater Fire In Your RV, https://www.youtube.com/watch?v=2GDErKY05-8&t=1s, Traveling with a person on kidney dialysis, Currently Active Users Viewing This Thread: 1. Youll want to keep the rod well lubricated. Caravan RV Auto Electrical i am a mobile service and also can do in house and pick up from 674 port wakefild road green fields SA i can supply and fit All types of Accessories for your caravan RV we can supply and fit Diesel heaters and we stock most parts Description Specifications: Model:FJH-5/2 Heater Power: 5KW Fuel Gasoline:Diesel Rated . Around $150.00. They did work but were very hard to pull out and push in. Enter a Melbet promo code and get a generous bonus, An Insight into Coupons and a Secret Bonus, Organic Hacks to Tweak Audio Recording for Videos Production, Bring Back Life to Your Graphic Images- Used Best Graphic Design Software, New Google Update and Future of Interstitial Ads. When you loosen the bolts that are holding the gate valve together only undo them about a 1/4 turn at a time. Uflex Replacement Cables; Hydraulic Oil/Power Steering Fluid; Trim Controls; Uflex Rack Steering; As mentioned above, you can simply spray or rub the lubricant on the valve after youve dumped the black tank contents. Rating Easy fix by: Anonymous Tap on inner gate with a 2x2 and hammer. Every Saturday and Sunday morning. I suggest using water resistant WD-40 Specialist (click to view on Amazon) on the handles, but it won't work as well on the inner gate part. Snaked the lines, drilled a hole, baking soda vinegar trick, and everything else under the sun. Dont wait until it gets stuck. Status: Offline. Your email address will not be published. so jack the fiver up, put down cardboard on the gravel and go to town upside down removing the belly coraply and disasembly of the BRISTOL valves. I had to put new seals in it, and when I did, I used vegetable oil & gave both seals a good coat, plus the blade on the valve, and the valve shaft. This website utilizes some advertising services. You can go ahead and add a lubricant. . It is especially hard to spray lubricate into the gate valve if your RV uses a handle connected to a cable with the gate valve located somewhere further underneath the RV. Heres How to Fix Your Stuck RV Black Tank Valve, How to Unstick Your Stuck RV Black Tank Valve, Preventing Your Black Tank Valve From Getting Stuck Again. Once a year I dump some vegetable oil down each waste water tank as well as use the usual supplied straw that comes with every can of spray lube and force some lube by the handle end of the cable. 714-703-8200; rvparts@rvpartscenter.com; Search. WATCH VIDEO Make sure to lubricate the valve blade and put a leak-free gasket around it. Hopefully, the valve just needed a little space and it opens after just a few turns. I havent actually tried this by putting a small amount in a jar and letting it sit, but I think that I will the next time I use some. Thermal Package Plus. See Also:Best Septic Safe RV Toilet Paper Brands Reviewed. The black and grey tank valves should no longer be sticky. Some do it 3-4 times a year when the rig is in service as well. It not only gets lubricant all over the gate valve but on the walls of the holding tank as well which helps stop waste from sticking to it. This consist of a cable much like a throttle cable on a lawn mower. You can reference numerous YouTube videos showing how to go about this, but the entire process should take less than an hour. Now "work" the valve open and closed a few times. After a while, it starts to feel like you wont be able to open them at all. And How to Do it Legally. Try adding more than the recommended dosage to increase the chance of it getting to the valve. Use a product like Dow Corning 111. Its worth a try though, and if you use a ton of dish soap it might be able to work its way down to the valve. Please do your due diligence when deciding which lubricant to use. The first thing you need to do is make sure your black tank is empty and clean. so should I leave alone and hope there is enough room for freezing expansion or should I use up room and put a gallon or so in my tank! This situation is something every RV owner fears, and it can sometimes be difficult to solve. Taking care of your RV black tank valve is a necessary task for RVers. The lubricant is heavier than water which means it can sink to the bottom. I will do this with only about 2-3 gallons of water for sloshing and just before a trip. Have done this before but had been a little over a year. Rockport TX. And we also ensure that any third parties we contract with either anonymize your data or have strict privacy policies in place that are aligned with ours. Is It Time to Replace Your Waste Tank Gate Valve?