Boatcarpenter
New member
- 1,877
- 17
- 0
- Location
- Marlborough, NH
You can also test to see if your check valve is working by draining the inboard tank first and then waiting awhile to drain the outboard tank. If when you go to drain it there is no pressure, it is most likely malfunctioning or you have quite a leak downstream of it in the system somewhere.
BC
BC