[C38] bilge pumps

[eyriepg at comcast.net]

Something that I plan to do is put a small pump with a small hose in my bilge.  This smaller pump would have less water to flow back into the bilge after it stops because of the smaller diameter hose.  The pump that I have now would only come on in emergencies if I elevated the float valve a couple of inches.

Phil Gay
C38 049 Que Linda
Everett, WA

-------------- Original message -------------- 
From: Les <hlhowell at pacbell.net> 

> Hi, Ken, 
> I am not biased in any way, but most reputable sites will tell you not 
> to put check valves in bilge pump lines. One way to minimize back 
> flushing is a riser tube in the pump line, that goes from the pump up to 
> above the water line somewhere amidships, with a siphon break at the 
> top, like that used on the muffler systems. This would then reduce the 
> back flush to about a glass full. It is too bad that there is no "sump" 
> to speak of in our bilges. I haven't implemented that yet. One of the 
> other posters spoke of using two pumps and adding a float switch on the 
> shower sump so it would work as a bilge pump as well. That sounds like 
> a good idea, backup, plus if all three are working, that's a lot of 
> water going out. 
> 
> Regards, 
> Les H 
> On Sun, 2008-02-10 at 19:38 -0800, Kenneth M. Sutto wrote: 
> > Here,s the problem. My bilge pump works fine except that when it 
> > shuts off all the bilge water in the outlet line runs back into the 
> > bilge. It's like I ever pumped it out. There is always about a half a 
> > two gallon bucket left floating. I want to put a check valve just 
> > past the pump to keep the water from running back. My worry is that 
> > once the line is full of water and the pump kicks in, will it be 
> > strong enough to pump out the water in the line plus what's in the 
> > bilge. I don't want to have to end up with some kind of 35hp ejector 
> > pump that sticks up through the floor boards 2 feet with a hose the 
> > size of a fire hose and needs four extra batteries to run it. 
> > Anybody with the same problem? 
> > 
> > Ken Sundancer 
> > 
> > 
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