2005 40 PC Bilge pump set up


N

nsgy11

New member
I am really unhappy with bilge pump set up in the 40 PC. Engine bilge has one 2000 GPH pump and if it stops working ??? The hose is routed aft of starboard engine and empties into manifold and is fixed to the bilge floor with clamps. Mine recently cracked in two places right where the clamps were seated and was leaking some water every time the cockpit bilge switch was actuated. Interestingly, the cockpit bilge switch activates the cabin diaphragm bilge pump as well. The cabin bilge pick up guarantees 2 or 3 inches of water in the bilge that fails to pump out. I modified this by extending pick up to the deepest part of the cabin bilge and manually pump out each time I go to the marina. Not much water but enough to start some funky smells from time to time. You need to be an alien to reach the engine compartment pump to clean the area or even look at it. My opinion - two pumps are not adequate for a boat of this size and engine area pump is not accessible.
Has anyone modified the pump system? Does the cabin bilge connect to the engine bilge area?
I am planning to add two pumps for safety - one in the cabin bilge to a separate through hull on the port side, and a second backup pump in the engine compartment probably to another thru hull.
 
Hey NS,

I don't have any answers for you but I share a concern. My 41 Pc pumps are set up quite high and cannot pump the blge dry. I store a wet-vac onboard to get the funky water out from time to time. I was actually thinking about a bilge pump redesign when I read your post. It's on my to do list...
 
my cabin bilge pump exits at the thru hull manifold with everything else. works fine as far as im concerned. i wouldn't want the cabin bilge to pump into the engine room bilge though, that doesn't seem right. are you sure that is how you are set up?
 
Hi FormulaTenn,
Two pumps go into the water manifold. My question is whether the bilge space in the cabin drains into the engine bilge space. So if I flush clean water into the cabin bilge where the thruster is located, will some of that water wind up in the engine bilge and get pumped out. I know there is a strainer in the cabin bilge area that drains into the manifold and is supposed to keep water out of the cabin bilge space.
In my previous 40 PC, destroyed by Sandy, water entered the engine compartment and flowed into the cabin bulkhead compartments in aft cabin and also into the center cabin bilge which was filled with some mud and water. So I am thinking that there is communication between the two areas.
Only reason for this question is whether I can safely clean by hosing water down the bilge in the cabin area.
 
so your previous boat, you think water entered from the engine bilge and then made it's way into the cabin bilge? i would say this is definitely possible if there were a flooding (sitting thru a hurricane) situation but i don't think it should happen under normal circumstances. i THINK your cabin cabin bilge should exit out the thru hull manifold with all your other stuff. i DON'T think your cabin bilge would be set up to discharge into the engine bilge. therefore, if you wash out the cabin bilge with fresh water, it should discharge overboard, not into another compartment. i suppose you could add some food coloring to the cabin bilge just to verify if it is coming out the side of the boat or into the engine bilge. i once scratched my head over a similar problem until i realized i had a hole in one of my discharge hoses.
 
gwazoo27 said:
I have hosed out my cabin bilge and it pumps out the manifold and not the engine room.
Click to expand...

Same. My cabin bilge was very dirty so I added some bilge cleaner and used a hose to put some water into that area. I let it slosh around for a little while then added some more water and pumped it out. It never emptied completely. I had to use a dry vac to remove the balance of the water and then (like a nut, lol) I got down on my hands and knees and towel dried the bilge. At no time did the water in the cabin bilge make it's way into the engine room.
 
I've mentioned on a few posts that when I had my engine replaced last year I installed 2 of these whale bilge pumps under the engine in the very back location. A year later I am so thrilled I did this!. These are easy to mount, have backflow valves and it looks like the newest model are set up for auto sensing of water. These suckers can fit into many places inside the cabin too if need be.

http://www.whalepumps.com/marine/pr...uct_ID=10002&FriendlyID=Supersub-Smart-Family

TLR
 
My 2008 40PC cabin bilge and engine bilge both pump out the water manifold. I get rain water in the engine bilge from the cock pit drains so just before I get on plane I run the engine bilge pump manually. The bailing sponge and manual bilge pump are used whenever I notice water in the bilge. I am thinking that a 2-1/2 gallon wet/dry vac might be easier, but it's just more clutter. As to the passage of water from the engine room to the cabin, a yacht certification means that all those openings are suppose to be sealed. That does not mean that water will not infiltrate through the foamed closed openings. My engine room flooded during Sandy, but only to the top of the stringers as the boat stayed on the stands. And yes I did get about 10 gallons of water in the cabin bilge, well below the lowest interior part of the boat.
 
Thats exactly what happened to by boat after Sandy. I am going to put a non return valve in the hose from going from the cabin bilge, the one that ends up in a metal strainer in the front bilge compartment by the thruster. Water always accumulates there and when I pump it out manually, water level goes down and then flows back out of the strainer.
 
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