Need a diaphragm for a bilge pump - SailNet Community
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post #1 of Old 09-10-2008 Thread Starter
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Need a diaphragm for a bilge pump

Today, I pulled the cracked and dried out rubber diaphragm off the bilge pump in my cockpit. I took it over to the nearby ships store and they had never seen anything like it. Swell.

For all I know, the pump is 31 years old, which is the age of the hull and I was not able to get any kind of manufacturer name from it. Is there a way to find the proper diaphragm?

Thanks...
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post #2 of Old 09-10-2008
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What kind of boat is it? Maybe you can find a owner's group or other networking ways to find parts by finding other like boats.
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Can you post a photo of the pump, with something like a ruler in the photo to give a sense of size/scale?

Often, a replacement diaphragm can be made from thin neoprene, which many of the OEM diaphrams are made of.

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post #4 of Old 09-10-2008 Thread Starter
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The boat is a Scampi 30. I'll take a photo of the diaphragm and, if possible, the pump tomorrow, thanks very much!

Jim
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post #5 of Old 09-11-2008
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The replacement diaphragm for a Whale Gusher bilge pump is not a heck of a lot cheaper than a brand new unit. You might keep that in mind when you're trying to chase down an orphan pump part. Considering the time and cost, and safety concerns, you might consider just buying new.

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Different mount

the new Whales have different mounting patterns than the OEM on my Pearson 34 so I rebuilt. Not a difficult job. OEM unit mfg by Imtra which is now Whale
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A very good many of the older boats came equiped with the aluminum whale gusher 10. They were yellow and often the alumiminum oxidizes quite badly and much of the yellow coating as well as the manufacture /model info also becomes hard to see. I would be surprised,however, if an experienced chandler would fail to recognize this pump. Is the pump plastic or aluminum? As already mentioned , a picture would probably get it identified.
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post #8 of Old 09-12-2008 Thread Starter
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Hi Everyone and thanks again...

I was not able to get a picture Thursday, hopefully I'll get it Friday to post. If I'm lucky I'll find out who made it.
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post #9 of Old 09-13-2008 Thread Starter
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Welp, didn't get the pics today, really poor weather up here ruined the day But tomorrow afternoon looks okay, so maybe then...
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post #10 of Old 09-23-2008 Thread Starter
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Okay, here are a few pictures which might be useful...

Outside 1

Outside closer

Diaphragm

That ripped diaphragm measures 5.5 inches in diameter. If I have to replace the entire pump I can do that, but I am hoping to find something that would fit into the same hole. Any suggestions are appreciated, thanks...
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