Some bypass systems only have 2 valves to turn and have a check valve on the output of the water heater, so you may be OK. Some have only 1 valve. My current RV has only 2 valves, my old RV had 3 valves.
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2014 Palomino Puma 25RS
2011 F-150 Super Crew XLT
Days camped in 2014 - 23 Camped 2015-47
Camped 2016-71, 2017-33, 2018-29 booked
KT4W
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