Rumbling in the lines

[bent4bubbles]

Hi! Bought a 2017 22FB in May and have been using it every other weekend since. Last two outings we fill up water at home and dry camp like usual. Except now when we wash hands we hear a low rumbling and shaking in the plumbing. If you flush the toilet then it stops. Sooooo weird. Oh and the last time when we turned on the pump after we parked, it took a few minutes to build pressure and shut off. Any suggestions would be greatly appreciated.

Thanks!
Jen (ChromeHome)

[smithcreek]

Could be lots of things, so here's a guess. The top of the strainer (right before the pump), is not tight or there is an issue with the gasket, water is draining back to the fresh water tank and air is getting in the strainer and line. When you wash your hands there is not enough flow to get rid of all the air, so it shakes the plumbing. When you flush the flow is much higher and clears the strainer of air.