Water Inlet Restriction or Check valve?
I have a 2015 Flagstaff. I don't have much water flow at any faucet. I'm new to campers though. When I flush the toilet, I hear a squeaking sound coming from under the sink sometimes. This is where the water inlet, pump, and filter are located. I borrowed a large 3/4" chicken house regulator and it made no difference to my water flow when taking a shower. Guy that loaned me the regulator told me I had a check valve or other restriction if it didn't make a difference. Any tips or comments?
2015 Forest River Flagstaff 831RESS
2000 Chevy K2500 w/5.7L gas burner