Re: 2016 Passport 2400 bh
If you have valves in the convenience center, and one of them is a water heater bypass, when you turn it to the bypass position, it stops cold water from going to the water heater. On the hot water out port of the water heater, there will be a check valve, which prevents water from going backwards back into the tank. You then remove the anode if it is a Suburban, to drain the tank, or the drain plug if it is an Atwood. There is no need to access the rear of the water heater if you have this system.
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Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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