Next message: Jim Isbell: "Re: lv-ab: Navigation lights"
I assume that your 3500 GPH (note gallons per hour- not gallons per minute) existing Rule pump has a large 1-1/4" or better discharge hose, and you want to install a small 500 GPH or so pump for low volume leakage. You can tie it into the bigger pump's discharge hose with a tee fitting, Make sure that the straight branch of the tee is in line with the big pump's discharge hose. But you MUST install a check valve between the small pump and the tee fitting and the big pump and the tee. Otherwise the small/big pump will pump backwards through to the other one. Check valves will restrict your flow a bit however. Given all of the above, it is likely to be easier to install an independent discharge hose and throug hull for the new pump, and this would certainly be a better practise.
I would also mount the float switch for the new small pump below the big one. That way only the small pump will trip on with small leakage flow to the bilge. If you get a serious leak, like a breached through hull then the water level will rise faster than the small pump can keep up and the big pump will kick on. It would also be good practise to install an alarm triggered by the big pump's level switch.
David
David
----- Original Message -----
From: Ian and Heidi Jarman
To: liveaboard list
Sent: Wednesday, August 18, 1999 8:02 PM
Subject: lv-ab: Combining Bilge pump discharges
I have a manual gusher type pump and a Rule 3500 GPM electric. Obviously, I need a small auto/electric pump for sucking up the backflow of the two others and also just for routine rain water from the mast, etc. . . . I don't want to create another thru-hull, and I don't want to get rid of the 3500. Can I combine the two electric pump discharges at the thru-hull with a Y-type connector, or is this taboo?
Thanks to all who answer,
-Ian Jarman
s/v Braveheart
___________________________________________________________________________
|| The Live-Aboard List : send a "subscribe" or "unsubscribe" request ||
|| in body of message to: ||
