jr9744, Howdy;
When you asked;
" @flboy I wouldn't mind using my gray water tank to flush out the slinky, but I do like the separation of systems. I think I seen the debate on your thread at some point. Are you sure your gray/blank tank setup isn't contaminating your fresh tank in any way. I like your idea of adding a water 'hose' there and buying that item you pictured. I think I may go this route unless I'm sure the black tank won't get into my fresh tank. "
Both Black & Gray systems should remain separate, in that you are correct. The only time they appear to
connect is at the drain connections. Both tanks have a blade valve to open for discharging the contents
of each tank into the drain line to the slinky then into the sewer system. If I remember correctly, Don was
going to attach a flush system into his black tank that would require a separate hose (with a back flow preventer),
so that he could clean out his black tank. Something like this;
https://www.pplmotorhomes.com/parts/ele ... it_89-8445He and anyone that uses one of these or any type of flush system should always have a separate hose dedicated
for this use so as to eliminate the chance of contamination of the fresh water system.
Movin' on ...
" @hankaye Glad you guys are bringing up the 'slinky' now and how you keep it clean. Really never something on my mind at all. With your method, it says that want uses a regular hose connection. You have a hose connection going into your black tank? Is it off the 3 inch outlet? And speaking of full, how do you know when your black tank is full? I have no sensors in there. "
OK, Yep, the flush wand is hooked up to a regular hose,
again make sure that it is NOT one you use for your regular
fresh water system. With a regular straight drop commode system you can just open the drain port and insert the wand
and it will spray the interior of the tank to help the stubborn stuff find the exit. You can also close the exit (blade valve),
and fill the tank while loosening the tenacious grip of the stubborn stuff. Remember in the black tank excess water is your
friend. The volume of water (or other liquids ie. re-cycled adult beverages), is what creates the flow for proper drainage.
In the design of my RV (home), there is a Black tank flush system installed. Just like the one that flboy (Don), has planned
for his. Entirely separate from the regular fresh water system and adorned with vacuum breakers aka back-flow preventers.
I have a separate water hose "Just for it!"
How to tell how full your Black tank is ... well with a straight drop you can actually see the level or you can learn the sound
that it makes when the water falling in makes a 'certain sound', make a dip stick, or it over-flows ...
Hope this has answered some of your questions. If not then ask more and keep on asking.
hank
Striving for a less complicated life since 1949 ...
Every day I beat my own previous record for number of consecutive days I've stayed alive.