OK new question on thses devices, I have two of these devices both going to a common holding tank, and for the most part they have run fine for the past two years. Yesterday walking into the engine room, I noticed a lovely odor and traced it to the generator pump for the rear head.
It appeared to be working (?) but leaking on the top where I can see the top of the piston, that goes up and down. At this point I'm looking for directions on how to rebuild it and why when it fails would it leak out the top ?
I understand the need to replace the duckbills and have those on board, but before tearing it open, whant to know if there are other products needed...and maybe why it leaked out of the top.