On Wed, 17 Feb 2016 02:30:35 -0500, Stormin Mormon
wrote in

Why so complicated? Hook a hose from the
spigot to a drain. Open the valve, let
the water pressure blow some sediment out.
Don't touch the power or TP valve.

+1. No need to drain-to-empty. All you need to be doing is flushing
a few gallons out the bottom to remove the sediment.
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