1rickistic Report post Posted February 20, 2022 My Gulfstream class A pushes water out of the fresh water tank after I raise the leveling jacks after being hooked up to shore water. Anyone deal with this problem? Share this post Link to post Share on other sites
hermanmullins Report post Posted February 21, 2022 Welcome to the Forum. Most likely your check valve is bad in your pump. Herman Share this post Link to post Share on other sites
wayne77590 Report post Posted February 21, 2022 I'd like to have a little more detail on just what is happening, if you can. Share this post Link to post Share on other sites
richard5933 Report post Posted February 21, 2022 10 hours ago, hermanmullins said: Welcome to the Forum. Most likely your check valve is bad in your pump. Herman This definitely sounds like the first thing I'd be checking as well. If the pump is still functioning otherwise, you can try: 1) Opening the pump and cleaning it - could just be a piece of sand or other crud/mineral buildup in there keeping the check valve from sealing, 2) Rebuilding the pump - there are kits available. But overall cost of just replacing it is sometimes not much more so it may not make sense. 3) Installing a check valve on the outlet line of the pump to prevent water from the system from backing up past the pump and putting any stress on the check valve inside the pump. On some pump models the check valve is somewhat lightweight, making them easy to damage if the shore water pressure is too high. Share this post Link to post Share on other sites
