Black tank cleaning problem.
I recently purchased a former rental 23A Thor/Majestic class C from Cruise America. I was under the impression that most black tanks are directly under the toilet, and when you open the trap, you can ...
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We were at a State Park this last week-end and when leaving I visited the dump station as usual. I was very fortunate this time. I was the only camper there. I had about 30 minutes of "alone" time with my tanks. I took advantage this time of being able to use my built in black tank flusher.
My normal routine for draining the black tank is simple. I have a Flush King and both my black and grey exit at one spot. So I drain the black first, then back flush the grey into the black, then flush the black again. I then backflush with grey again, then dump the black. I do this 3 times and with the clear section of the Flush King I can see what's really coming out of those tanks. I thought I was doing pretty well.
So, after my normal 3 back flushes, I still had no one pull in behind me wanting to dump their tanks, I decided to go ahead an hook up the black tank flusher. (Remember, this is after back flushing 3 times!).
I turned the sprayer on with all the valves closed for about 2 minutes and then released the valve with the sprayer still spraying. AND OMG! I was SHOCKED at how much more toilet paper shreds, brown water, little bits of "this" and "that" came running out! I know.... this sounds gross, and yes ... it is!
Since I sitll had no one pull up to the dump station behind me, I continued letting the sprayer spray for a couple minutes, then pulled the valve. I did this until no extra little particle came flushing out. Still, it took almost 30 minutes of flushing, back flushing, spraying and rinsing to get all the "stuff" out of that tank.
I always do the 3 time back-flush. And I always thought that was as good as it gets! Boy was I wrong!
By now, I had 2 more RV waiting in line, so I finished up quickly, and moved out of there. I then added about 5 gallons of water to the black tank, about 2 inches of Dawn Dishwashing liquid down the toilet and drove home. Once home, I drained the tank again, and even more "stuff" came out!
My normal routine for draining the black tank is simple. I have a Flush King and both my black and grey exit at one spot. So I drain the black first, then back flush the grey into the black, then flush the black again. I then backflush with grey again, then dump the black. I do this 3 times and with the clear section of the Flush King I can see what's really coming out of those tanks. I thought I was doing pretty well.
So, after my normal 3 back flushes, I still had no one pull in behind me wanting to dump their tanks, I decided to go ahead an hook up the black tank flusher. (Remember, this is after back flushing 3 times!).
I turned the sprayer on with all the valves closed for about 2 minutes and then released the valve with the sprayer still spraying. AND OMG! I was SHOCKED at how much more toilet paper shreds, brown water, little bits of "this" and "that" came running out! I know.... this sounds gross, and yes ... it is!
Since I sitll had no one pull up to the dump station behind me, I continued letting the sprayer spray for a couple minutes, then pulled the valve. I did this until no extra little particle came flushing out. Still, it took almost 30 minutes of flushing, back flushing, spraying and rinsing to get all the "stuff" out of that tank.
I always do the 3 time back-flush. And I always thought that was as good as it gets! Boy was I wrong!
By now, I had 2 more RV waiting in line, so I finished up quickly, and moved out of there. I then added about 5 gallons of water to the black tank, about 2 inches of Dawn Dishwashing liquid down the toilet and drove home. Once home, I drained the tank again, and even more "stuff" came out!
