I did e mail the seller asking about replacement plates,but she didn't really know what I was talking about.
Not really up on how they work myself,anyone care to go into a bit more detail,so sort of galvanic process where a current is passed through some plates ?
I know my mate had a galvanic isolator on his barge,but the one next to where his was moored had dodgy electrics and it stripped the paint off his in under a year !!