Stan,
No, I talked to Chicali on the phone from our home in S.W. CO. (Durango) Please let me know what you would do to re-route lines/replace the check valve after pulling the check valve out of there. Just a T fitting??
Do you have a picture of the suspect check valve in a partially assembled camper? (similar to the above shots?)
DD,
My suspicion is the blockage is upstream of the shower and faucet, (check valve) but I will try taking the plug out of the WH and turning on the pump this weekend. If it pumps water out of there, then maybe the faucet valves are plugged up and the shower is downstream of the faucet. That just seems weird though, how would a plugged faucet be keeping the shower from working? (I obviously am not able to see the hose routing)
I will finally have time to work on this soon. Thanks for all the replies!