Valterra 45 Degree Hydroflush Attachment with Removable Anti-Siphon Valve for RV, Camper, Trailer -F02-4100

This makes sure your black tank it totally clear of waste. No more black tank sensor reading full after being dumped. As a solo traveler, waste sits in the tank for a long time. I don't necessarily get a poop pyramid but sensors are notoriously inaccurate in an RV. This device actually helped my sensors read fairly accurately.

We do NOT have a straight line from the valve to our tank, but it worked great when we added the "Valterra T58 Twist-On Waste Valve" to the end between the valve and the waste hose. It was the first time we've ever been able to flush out our black tank since we bought the trailer new 8 years ago and we go so much gunk out of there! Our trailer was very smelly before we flushed the tank as part of our de-winterizing procedures, but by the time we got it back to the acreage, smelled like it should! We spent 1h at the dump station filling and emptying the black tank. I'm sure we could have spent more time and got more out, but it seemed like we did a pretty thorough job. It will now be part of our winterizing and dewinterizing procedures!`

Great addition to my waste system, in conjunction with the valterra valve . it allows you to flush your waste tanks out and see what's going on.

Works as advertised. I read reviews on several other similar products that talked about leaking seals and breakage so opted for the Valterra. It is holding up well.

This thing works great for cleaning your tanks. (and for removing clogs too!)When I dumped my tanks 2 trips ago I didn't think the black tank was empty... it seemed like I barely got anything out and the gauge still read 2/3s full (was it full or just stuff sticking to the sensor????). So I put more chemicals in the tank and then ordered this attachment to try and bust out any clogs. I bought a secondary valve  Valterra T58 Twist-On Waste Valve  to put on the end of this flush setup so that I can shut off the drain hose and really push the water back into the tank.Sure enough, when I went out last weekend the first thing I did was dump the tanks and I got a lot of "stuff" out of the black tank. I then flushed the tank a couple times with fresh water (through this flush valve) and got even more stuff out.I bought this flush valve instead of some other flush valves based on the reviews. (other flush setups with built in valves had poor reviews due to slow flow). This setup flows a lot of water back into the tank. It still takes a few minutes to get the tank filled up (watch your sensors!) but its worth the wait.This was our last trip out for the season so I spent 15 minutes or so really flushing the tank out. I found the best thing was to do several short flushes (so you just cover the bottom of the tank and rinse out the "sediment") and then do a full flush where you fill the tank. The full flush seemed to pull out a lot of TP that was sticking to the sides.Now my tank reads empty and I know it is empty.I didn't bother flushing the gray tank. I was a little worried that I might push some black water contaminants back into the gray tank and it would get smelly???Oh - one other nice thing about this setup is that you can really rinse your hose and pipe out. The last thing I did was to shut both valves on my camper and turn the water on to rinse out the end of the pipe and the hose. I know the gray water rinses out the hose, but I figure fresh water rinsing is even better. Valterra T58 Twist-On Waste Valve