I have been doing it for 20 year. Fill the empty hot water tank to 40 psi and then go inside and drain one tap at a time. Repeat twice and Viola done. Up to minus 40F here in winter. Do not forget W/D tapes and pump lines. Starting pump while connected to city connection could drain pump and blowing in the flushing liquid suction line if equipped may work.
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Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..
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