Heads

Electric Heads
Manufacturer: SPX Johnson
Model/Part Number: AquaT™ Silent Electric Comfort Marine Toilet
Part number: 80-47232-01
Manual: File:Marine Toilet Manual.pdf

Hoses
Water Supply and Vent: Shields Series 148 White PVC Sanitation & Water Hose (0.75" ID) - P/N: 148-1006
Black Water: Shields Series 148 White PVC Sanitation & Water Hose (1.5" ID) - P/N: 148-0346
Black Water (improved): MPI Series 104 - Premium Hardwall Sanitation Hose (1.5" ID) - P/N: 104-1123

Port head operation tip
When flushing the head with seawater, urine reacts with minerals in the water and forms hard crystalline deposits called urine scale. Over time, these deposits build up inside the hoses, restricting flow and eventually leading to the worst jobs on a boat. To extend the time between required servicing, never allow urine to sit in the hoses.

On the port side, the hose run between the head and the holding tank is particularly long. It takes nearly one gallon of water to fully purge urine from this line. In practical terms, this means filling the toilet bowl to about one inch below the rim before flushing.

How to unclog the holding tanks: External Link

Replacement Parts
Manufacturer: SPX Johnson
Model/Part Number: Replacement pump sea water pump 3.5gpm (12V)
Part number: 81-47248-01

Manufacturer: SPX Johnson
Model/Part Number: Centrifugal Macerator Pump (12V)
Part number: 81-47248-01

Manufacturer: SPX Johnson
Model/Part Number: Comfort Soft Close Toilet Seat
Part number: 81-47241-05