J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Holding Tank Repair or Replace

I didn't have to replace any cracked fittings or the tank, but have done a complete hose replacement. Make sure you use a heat gun to soften the hose when removing and putting on new hose, or you will need lots of force to go over the plastic fittings. This force could easily contribute to the cracking problems you have. If the 5200 solution mentioned above works, I say do it.

The discharge of the tank on Rhapsody is attached to a hose about 5" long, connected to a Y-Valve that is bolted to a plywood board. The board is cut as a trapezoid so it sits flat, on both sides of the hull to support the Y-Valve and the macerator pump. If you have flexing on the discharge at the bottom of the tank, consider adding the plywood support and clamp the hose to it to prevent movement.