Welcome to the forum!! If your water heater only has one valve, look at the handle. The water will flow in the direction of the handle. If it’s pointed towards or away from the cold line IN then the water will flow into the tank. If it’s pointed up or down (in line with the bypass line) then it will flow into the bypass. There is a check valve at the tank on the hot OUT fitting so in bypass mode it won’t back flow into the tank.
Are you totally confused?
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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