blocked black & grey water tanks
Im in a 99 rexhall rexair, i went to drain the tanks like normal, apparantly i left the valves open last time, after i used the flush system for 5 minutes i opened the valve. i had mainly fluids come...
Forum Discussion
Old-Biscuit wrote:nomad.297 wrote:
Go on your roof and put a Drain King on the vent for your black tank. It will build up enough pressure to force the stoppage out of the drain. This won't work for your gray tank.
Edit: It will work for your gray tank if you know how to cap off your shower and sink drains. I'm a plumber, so I know I could do it.
Bruce
Good way to blow the grommet out that some mfgs use to seal toilet drain line and vent line into top of waste tank. Might work OK if those lines going into top of tank are glued but those that use grommets are just friction seal. (same with grey tanks)
Could get real messy plus labor intensive to reinstall drain/vent lines back into top of tanks
It would push a stoppage through way before there would be enough pressure to pop the grommet out.
Bruce
