The concept and desigh are excellent EXCEPT the quality of the clear plastic dogging teeth is of very poor quality. I am on my 3rd one and have two used ones. On one of the two, two dogging teeth have broken off and in the other one lost three teeth at once. NO they were not "horsed" they are simply made of an inferior plastic that has no strength. If there was a similar unit on the market I would give it a try and give up on this unit!

I purchased the Flush King and used it week before last. For about two years I have tried various solutions and tools get my black tank completely empty and to get my meter to register it as empty. The wand seemed to be the answer at first but it is highly dependant on the water pressure you can deliver to it. It is also quite inconvenient and messy to drag the hose in through the camper. I bought the Flush King and used it according to the instructions. Once I figured out how to determine when I had added enough water into the tank, it worked exactly as prescribed. The tank was completely emptied and my meter was reset to "empty". I will be using this tool on a regular basis from now on.

We have a 2001 Cameo by Carriage. We had a clog in the gray water tank. the Flush King worked as advertised. The clog is gone and the tank is flushed clean. Well worth the money. Get one!

It works exactly as advertised and does a great job of cleaning out your tank.

I bought one after seeing my brother-in-law use a similar product. The FK works much better than other products, though. Very happy - use it everytime we take our '04 TT out.

If you think your black water tank is clean try this and you'll be surprised at the sludge that you flush out. Well worth the money!

If you have a holding tank then you need this item. I would drain my tanks then check their level and I would get readings saying I had 1/2 to 1/3 of a tank remaining. The lights would eventually give me a reading of EMPTY. I felt that my tanks wern't draining completely. After using the Flush King it proved to me that my tanks when empty were not really empty. I ended up flushing my tanks maybe 6 to 8 times before I had clear water coming out. The best part other then knowing my tanks are clean and empty, is no messy clean up.

OUT-STANDING!!!

The Flush King is money well spent. I purchased it after I started noticing my tanks were not draining completely, at least according to my gauges inside. After using the Flush King I have had no problems getting the tanks flushed out completely. It usually takes four or five times of backfilling and flushing.... especially on the black tank... but the extra time it takes waiting and draining over and over a few times is worth keeping the system clean and the inside of my RV odorless. I highly recommend this item to anyone who doesn't want to spend the extra money to get a permanent tank rinser installed... this gadget does the job and at much less the cost.

In the time it takes to disconnect a weight distribution hitch your black tank on a 26' TT will be full and headed up your stink pipe! Works great, if you leave it on long enough you will get your rubber roof clean too, well eventually.