Originally Posted by Weekendcamper
When flushing the black tank, is it better to close the dump valve and let the tank fill for a few minutes or leave the dump valve open during the flushing process?
My camper has a warning sticker under the turboflush hose inlet that prohibits running the flusher with the dump valve closed.
I am sure the reason has to to with over-pressuring a full tank.
Having said that, once I dump completely, I turn on the turboflusher; run it till it is clear; then while the flusher is still running, I close the valve for about 30 seconds and re-open it. I do that three of four times, just to make sure. I then close the valve before I shut off the water to the turboflush. That puts a few gallons of clean water in the black tank.
Then I go inside and add a full capful of Calgon water softener and a capful of laundry soap to the black tank through the toilet.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW