Thanks for the info. We just bought a 2017 301OK and have lots of issues with it. One issue is the fresh water pump running for about a second intermittently. the dealer replaced the pump one time and we thought it was repaired, but now it it is doing it again. We checked all the fittings under the bathroom and kitchen sink, but didn't know how to get to the ones behind the shower. The pump is obviously losing pressure for some reason. We will check them.