Changed hot water heater, now, no hot water.
I've done some research on this, but this is puzzling the **** out of me. I have a travel trailer, and the hot water heater that came with it, which was a Suburban that has a manual pilot light, ru...
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Yes, that is the check valve. Start with a new one. There is an arrow on the flat that shows direction. Water comes out of the HWT through that check valve when you are connected to pressure and water flows into the HWT. You want it to work so when you bypass the HWT and drain it, antifreeze cannot flow in reverse through the check valve and into the HWT. I know this... don't ask how I know.
