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Old 03-23-2018, 12:27 PM   #1
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What is this piece of plastic I vacuumed in my bilge

Hello Trawler Friends,

I keep a clean bilge and know this was not in there a few months ago. Does anyone have an idea what it is?

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Old 03-23-2018, 03:15 PM   #2
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Yuan?
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Old 03-23-2018, 04:44 PM   #3
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Non return valve disc maybe ?
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Old 03-23-2018, 04:55 PM   #4
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How big is it?
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Old 03-23-2018, 05:02 PM   #5
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A backing plate from a sander? Leftover scrap from construction? A holesaw cutout?
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Old 03-23-2018, 05:02 PM   #6
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it reminds me of a base to a bird spider
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Old 03-23-2018, 05:04 PM   #7
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Backing plate for a rail stantion? What are the dimensions? Plastic, metal, FRP?
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Old 03-23-2018, 05:11 PM   #8
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Hi, itís transparent plastic, approximately 1.5Ē. Thank you. As long as itís not part of my bilge pump, I think Iím happy
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Old 03-24-2018, 12:10 AM   #9
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Quote:
Originally Posted by HeatherAlyssa View Post
Hi, itís transparent plastic, approximately 1.5Ē. Thank you. As long as itís not part of my bilge pump, I think Iím happy


Is your bilge pump switch an ultra safety switch or an aqualarm switch? It looks like the bottom of the transparent case that contains the float
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Old 03-24-2018, 12:55 AM   #10
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kazenza, I have an aqualarm! Good call. Iíll check tomorrow. Thanks!!!
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Old 03-24-2018, 01:13 AM   #11
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I found this picture on the aqualarm web site. I think thatís it. Click image for larger version

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Old 03-24-2018, 05:36 AM   #12
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Some of you members should get a job in forensics
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Old 03-24-2018, 06:13 AM   #13
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Some of you members should get a job in forensics
I know it! I was curious as to what the part was too & knew if I just sat back & waited, someone would recognize it!
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Old 03-24-2018, 07:17 AM   #14
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Iíll confirm with photographic evidence when I get back to the boat. I was thinking the same thing about forensics. If that in fact is the part, thatíll be so satisfying.
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Old 03-24-2018, 09:33 AM   #15
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Man, I thought it wa a round-square-oval from the output side of a Knudsen valve!
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Old 03-24-2018, 09:44 AM   #16
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It's a "finarasis" that bleeds excess air off a horn compressor. Usually found on the fly bridge inside a brow locker.
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Old 03-24-2018, 10:01 AM   #17
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I only know that because I spent weeks trying to decide between those two pump switches
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Old 03-24-2018, 11:10 AM   #18
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Probably a piece from your fiberglass deck.
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Old 04-01-2018, 06:23 AM   #19
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I wanted to get back to this post and confirm that it is the bottom of the aqualarm transparent case containing the float. kazenza, youíre the big winner. Thanks!
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