If I live full time 4 secions with underpending can I leave black tank open and it want clog or does it have be closed and open and let drain when its full
I found the black tank clogged when left open. Liquid drains, rest dosen't, not good! So I leave grey tank open, but black tank closed. And I drain black tank when full, or close. Before I drain the black tank, I close the grey tank and either do dishes, take a shower, or at least run water for 10-15 min, and then I drain black followed by grey which cleans out the line. Hope that helps :)
It would work from any distance as long as you keep the correct drop of 1/4" per foot, otherwise solids outrun liquids or vice versa, which is not good.
