Forum Discussion
RustyJC
Nov 17, 2015Explorer
Some RVs drain some of the gray water sources (such as your sink) into the black tank. Do you have only one drain valve that you opened that drained both the sinks and the toilet? If so, it sounds like something filled the black tank and backed it up through the drains. Do you have a black tank flusher? Could that have been what you heard this morning? If so, it sounds like someone turned on your black tank flushing spigot at the pedestal if the flushing hose was hooked up. (There are a lot of unknowns in your post that require a lot of speculation on my part....)
Rusty
Rusty
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