Quote:
Originally Posted by phnguyk
Their Axis has two roof vents, same as our 31D, but for some reason they (Thor) also installed cheater vents under the sinks. I know Aces have cheater vents, whether they have two roof vents or possibly t'd to the black vent I'm not sure. Why they would use both is beyond me. My lavatory sink drains into my black tank instead of the grey. Kitchen and shower and waser/dryer drain into the grey.
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I agree, it makes no sense to use cheater vents. Perhaps they were having problems adequate venting with sinks not draining and just attempted to throw stuff at it. Especially if the drain is in a slide-out, perhaps it does not take a very good downhill route to the tank.
My bathroom sink is also plumbed into the black tank. While on the one hand, Thor probably did this for convenience sake, you can use it to your advantage.
What I do is when I dump the black tank, I open the spigot to the sink in the bathroom. That way, I get fresh water going into the tank while black water is coming out. And I have the option of flushing with hot water, which might... I say might, help keep the black tank clean.
Sort of a poor man's tank rinsing system...
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