Quote:
Originally Posted by GMH
No drawbacks to this if you:
1)always open the black tank drain before turning on the flush water,
2)shut off and disconnect the flush hose before closing the dump valve and
3)never leave the flusher hose hooked up correct?
You still need that high point though to keep black tank contents from leaking out the flush hose connection.
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#1 & #2 are for sure the safest way to flush the tank..
#3 Yes the recommended 16" above the inlet to the tank is best to prevent the contents from siphoning.
I'll add a #4 and say to always use a hose bib style back flow preventer on the hose either at the pressure gage or at the flush port connection..
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