where can i find tiny ballast pumps?

[petn7]

i'm thinking about making my own model sub with static ballast and i was wondering where i could find small pumps? i'm looking for pumps about the size of a "C" cell battery if not smaller. they need to be reversable and be able to pump to maybe 1 bar pressure. the pump doesn't even need to make a good seal as the pump can constantly be on in order to keep the ballast tanks full of water. any place i can find something like this?

thanks ahead

[JIMJAM]

rcboats.com

[petn7]

is the ABP motor really that small? i thought the motor was about S300 size

[JIMJAM]

I should have said check this site and see what is offered. Never used a pump system but I remember that the Albacore used it. Maybe your post on S.C. will get some responses.

[petn7]

yeah, i've made the same post there and so far nothing