Quote:
Originally Posted by FW28z
I am sure though, they did it as it was the cheapest way out rather than providing some intrinsic benefit to the RV owner.
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In this one instance I can't see it as being cheaper: There is a whole section where they double up the PVC on the diagram running both the lav sink and shower drains together until one goes to black and the other goes to grey. Seems to me they could have eliminated some PVC by running them both to the grey tank (and thus saved some $$--not much though, maybe $2 LOL).