Quote:
Originally Posted by CSimon
unless your on hookups with the valves open then just use lots of water to flush your on hookups so no need to conserve water.
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Even with full hookups you should always leave the black tank closed (as mentioned above).
I'll leave the grey open but the black is always closed. On an extended stay with full HU when the black tank gets full I simply empty it, close the valve again, and pre-treat the tank with chem's + a gallon or so of water.