Valterra Flush King™ 45 Degree Reverse Flush Valve Attachment for RV, Camper, Trailer

I finally had the opportunity to use my week old purchase. I saw this product as I was scanning YouTube and found a 55 minute video (yes, long but found it to be very worth my time for this important chore), put on with an employee of ‘Kleen Tank’ (KleenTank.com), a business that flushes out holding tanks for clients that hire them to clear out tanks for many different reasons.After purchasing a water flow gauge for my garden hose (as they recommended, for obvious reasons), and the required ‘Flush gate’ (above), I took my trailer to a local dump site rather than wait to do it at a campground dump location and risk a back up line that would push me beyond a typical timeline to complete the task.It went perfectly the first time with zero issues. The flush gate valve is so slick and reverse filling both tanks went quicker than I expected (roughly 1 gallon per 10 seconds, for me).My wife was in the trailer just this 1st time, to make sure we didn’t overflow anything as it progressed filling. I wanted 80% of the tank filled as recommended ( 30 gallon tank so 24 gallons for my rig). We stopped filling at 22 gallons when she called out to me as it filled. We ended up doing 2 flushes until clean on the Black, and then 2 on the gray.This system is really a quality accessory to get, then keep my holding tanks maintained properly. Check out the website mentioned above, it’s important to know that they recommend NOT using a Black Tank additive to break down solids, as it becomes a ‘pancake mix’ type mud in your tank and if allowed to dry AT ALL, it’ll be very tough to clean with a normal flush at a campground dump. More important info on that company’s website and worth the time, trust me.If you use any type of RV and need to use a dump station, get this accessory along with a water flow gauge. You’ll be very happy in future rinsing chores……..I promise!

This functions as it should. seems like it's durable and Is easy to use. It's on our RV cleanout tank pipe well. Was a great value compared to stores near me.

If you own a rv or travel trailer this is a must have. I'm new to trailer ownership and want to keep my rig in good working order. It is constructed well and easy to attach to your drain connection. It does look different from the image shown on site but it does rotate to make it easier to use. The length is good if you have room and it does clean well. The clear tube makes it easy to see if your black or gray tanks are cleaned out. It is easy to over fill the tanks with the back flush so get a gauge or keep a close eye on it. This kit has made emptying the tanks so much easier and more efficient. Very pleased with this product

Must have for your camper!!! Even if you have a black tank flush, this comes highly recommended by RV tank cleaners. It works great and makes sure you have clean tanks. It also works great on your gray tanks. Fits perfectly and doesn't leak at all. Cheap and necessary. Don't hesitate!!

I recently picked up a 45-degree reverse flush valve attachment for my RV, and it’s been a game-changer for the waste tank cleaning process. The installation was super easy—just attach it to the waste outlet, and it’s good to go. The valve feels sturdy and well-built, which I appreciate since it’s something I’ll be using regularly outdoors. The idea behind the reverse flush is simple but effective: it pushes water into the tank at a 45-degree angle, helping to dislodge any waste or residue left behind after the usual flush.When I used it for the first time, I was impressed with how well it worked. The reverse flush really does help clean out the tank more thoroughly by loosening up stubborn debris that doesn’t get washed away during regular flushing. It made the whole process feel quicker and more efficient. I noticed the tank felt cleaner afterward, which is a huge bonus when you're trying to keep everything in good condition. It’s a small upgrade, but it makes a noticeable difference in how I maintain the RV.There are a couple of things to be aware of, though. First, it’s important to double-check that it’s compatible with your RV, camper, or trailer, as it may not fit every model. Also, while the valve is durable, it’s still a good idea to store it properly to avoid any unnecessary wear, especially if you’re frequently out in rougher conditions. Overall, I’m glad I bought this attachment—it’s a solid, practical tool that makes waste tank maintenance much easier and more efficient.

This backflush valve was cheaper than the alternative other name brand. The hose adapter isn't put together well on delivery, and leaks. You can tighten it and then it's ok. Works great to flush the tanks on my trailer. Happy I purchased it.

Great product, combined with the digital water meter, to flush out my black and gray RV tanks. My rig has 45 gallon black and gray tanks. I metered in 53 gallons, accounting for about 10 gallons in my 4" hose, 4 times in the black and twice in my gray. Clean clean clean. Thanks