Recently seen a bilge pump system at boat show">Annapolis boat show that would work in this application. I am not affiliated with them at all and don’t think it would be best in most boat situations but for multiple areas that all need to be managed separately this is your ticket.
Boat: None,build the one shown of glass, had many from 6' to 48'.
Posts: 10,206
Re: My many wet micro-bilges -- advice?
Just a point. Watertight bulkheads are not necessarily watertight. Limber holes only let a small amount of water through and a pump at the lowest point should be sufficient to handle that. The talk about valves? Have a bung, if for some reason you need to make a bulkhead truly watertight. eg the pump fails or you have a catastrophic leak.
I would suggest a Florida company called ARID BILGE SYSTEMS (954) 328 9705 or www.aridbilge.com These people have a vacuum system that will cover up to 11 zones and it works. I have a 4 zone system on my boat for two years now and it works like a champ. The only drawback is that the vacuum system must dump the water it collects into something down hill from it. I use a small plastic waste basket with the smallest bilge pump and switch I could find. My main bilge pumps only come on when I test them.