Black Tank Washer

This blank tank washer is simple to make, and is a great option to the risk involved in cracking the tank during install of the Quickie Flush or the like. I added a valve to shut it off manually and it seems to have good pressure to do the job (see picture 4 & 5). After assembly I drilled 2 holes all the way through about 2" from the bottom as you can see in picture3.

Here is the parts list for assembly:

1 end cap, 3' 1/2" pvc pipe, 1/2" ball valve, 1/2" 90 degree angle, 1/2" smooth to 3/4" external threaded adapter, and 3/4" threaded to 3/4" threaded adapter.