oil8390ExplorerFeb 21, 2019Holding Tanksa question regarding the holding tanks. I have a 25 gallon black tank, how much water should i add to it before i use it for the first time in our new trailer and whats the easiest way to do that?Show More
Old-BiscuitExplorer IIIFeb 21, 2019Fill toilet bowl full and flushdo it twiceIdea is too keep bottom of tank WET that way stuff doesn't stick and dry out
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