Thanks for the correction that is where the raw water loop is going. When I
disassembled the old system the joker valve looked new but was almost held
closed by the solids (sand) that had settled back down the loop and packed
in around the back side of the joker valve. The tank had sand in it too. I
guess the PO liked raw oysters. I may raise the toilet which will put the
rim above the waterline accept when at 15o and everything will be above the
tank inlet which will be on the centerline of the boat. I will just install
stirrups on the toilet.
- Allen