Originally Posted by jacks5canada
Thanks - I do not see where one is - there does not seem to be any valve between the pump and the city water inlet. There is a T on the line but it does not seem to be a valve. What does it look like and how do I unstick it?
when you hook up a water hose to the inlet - does the water work ok?
I got this snip it from another site:
Concerning check valves, typically you’ll end up with three fresh water check valves; one at the cold inlet to the water heater, one at the city water inlet and one located at the outlet of the water pump. When on city water, you’ll want to keep water from entering the pump and when operating the water pump, you want to keep the water from spewing out the city water inlet. I always recommend carrying a spare backflow check valve just in case.
Below is what a metal and a plastic check valve will look like and there are other types as well