Forum Discussion
tropical36
May 05, 2013Explorer
Dutch_12078 wrote:
Bathroom sinks are sometimes plumbed to drain into the black tank, likely to help balance the capacities. My last two motorhomes have been plumbed that way. The RVIA standards permit one device besides the toilet to drain into the black tank, but the shower is not normally used because of the higher backup risk.
Interesting and how does one find out where their bath sink is draining to?
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