Sooo, just came back from an overnight trip on Monday and went to use the loo back at the dock. There was some grotty black looking discharge under the motor/Maceratror unit (jabsco 37010-0090) and the motor was struggling to spin. I pulled the unit out yesterday and I've just pulled it apart. I put some current on the motor and it spins, but was clearly corroded around the end plates on the outside. I investigated further and pulled down the electric motor. It was full of rusty water, like actually really full of water! There's significant corrosion inside and especially around the plastic end plate that holds a few circuits and wires where the bushes are mounted, one of the little capacitors has a wire corroded through completely.

I just priced a new complete unit (motor and macerator) at Pumptec in Sydney and it would cost $485 to get a new one delivered to me here in Tas.

A. Do I try and repair the existing unit, I'd at least have the cost of a new seal kit to do so($120)?

B. Bite the bullet and buy the replacement motor/macerator unit?

C. Buy a whole new loo? In which case what do you recommend, keeping in mind I want to keep the costs under control?