Fittings for holding tank revision.
Hey all. It's a long story but I'm redoing a mixed black/grey (solo) holding tank on our latest micro-trailer and making it strictly grey and then adding a cartridge toilet instead. The existing...
Forum Discussion
QCMan wrote:
If you are draining a sink into the tank you will need 1 1/4" pipe minimum and 1 1/2" would be ideal. Less and you will be waiting a while to drain as you would be creating a funnel. Likewise, the vent line should be the same size as the drain line even if you use an under sink vent stack with a vent valve on it. Shower should be the size of the fitting that is attached to the shower pan/tub for the same reason as the sink.
Thanks. Not too worried about the sink taking a bit longer to drain, it is quite small - this is a tiny trailer afterall.
I think I found a combination that will work at HD.
