Valterra Flush King™ 45 Degree Reverse Flush Valve Attachment for RV, Camper, Trailer | Clear body shows when water runs clean, anti-siphon backflow preventer, 360 degree swivel bayonet fittings, leak-proof

Cleared my blockage very quickly. Easy to connect and operate. No chemicals needed.

Perfect product for its purpose; shoot water into tanks and flush until clean. It absolutely works. I have flush valves in my Black Water Tank but using this valve helps to flood and flush your black and Grey tanks. I flushed the black then the Grey. I was concerned by the leaking videos and complaints, I used Teflon tape both valve and hose connections; no leaks, no issues. I'm hoping to upload a video for everyone to see. Cheers.....

This is the second type of back-flush attachment I have tried the first orange one with a 360 swivel blow apart on me while flushing, not the best experience. I figured this was due to the weakness of the swivel design, so this one being fixed does not have that potential flaw. I have to say on receipt I was impressed just how well made a sturdy this was, look stronger than the previous one. Having now given this a good test, I have to say, get one. The amount of additional waste I flushed was shocking, but I also noticed that I did not get any unpleasant smells while camping. So a really clean tank is a happy tank. I only have a small trailer, so smaller tanks, but back filling did not really take much time at all, flow from the hose attachment was significant and strong, enough to flush more out without back-filling. If you want a clean tank get one, then you'll wonder why you never purchased one sooner. Now for the observations; I found it a little annoying that the hose connection brings the hose right over the main dump valve on the device. While it does not stop you using it you do need to turn the valve handle 90 degrees to open it as the hose is in the way. Just wondering why they did not offset the hose connection and valve by 90 degrees, it does look like something you could do yourself, but its does not affect functionality. The other observation is one of time, to do the backflush it does take time and if its a single dump station you can end up with people waiting. I performed 2 full back flushes last time out which takes around 20-30 minutes with the initial dump, so allow for that. That said we waited for the trailer in front of us to dump and use their internal flush system, which was not much quicker anyway. Would recommend, but please get a separate hose for this only as we have seen people using their fresh water hose, which is not to be recommended, we have the bright orange hose so there's no mistakes. Happy camping

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

This thing works amazing like other reviews say. Iv tried the wands and all the tank blaster chemicals, nothing compairs to how well this works. It gets more crud out than ever imagined that was still in there. I did a regular dump after camping and then used this to do a back flush. I was amazed on how much was still left in the tank and come out after the back wash. The pressure and vortex this makes once you open the gate to let all the water out is very impressive and satisfying to watch. I did the back wash 4 times to get 10 years of crap out of my tank. I like how it swivels as well. The first time you go to swivel it, it will be rather hard but it gets easier as it gets worked in.