Yikes. Is it a Perko like this one? http://www.perko.com/images/catalog/product/xl/Fig%200493%20(Top%20On).jpg
I'm having a hard time visualizing how a single bolt failure could result in a hole big enough to outpace a 800 gph pump. Sounds like one of the wing nut bolts broke, but the other one was still holding the lid torqued partially in place? Seems like a poor design. The Groco design is nice because there's no way a threaded lid could spontaneously fail - https://fisheriessupply.scene7.com/is/image/FisheriesSupply/129443-groco-gro-arg-750-s-strainer-al1 Scary that it failed randomly rather than when you would expect a corroded bolt to break (while torqueing the bolts during filter cleaning). On Mon, Sep 11, 2017 at 7:59 AM, <cnc-list-requ...@cnc-list.com> wrote: > ---------- Forwarded message ---------- > From: Joel Aronson <joel.aron...@gmail.com> > To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> > Cc: > Bcc: > Date: Mon, 11 Sep 2017 10:24:34 -0400 > Subject: Stus-List Perko sea strainer failed - almost lost my boat! > Yesterday as we were sailing back to the dock one of my crew yelled > 'there's a lot of water down here'. I opened the companionway steps and > saw water coming out of the top of the sea strainer as the water was > reaching the top of it. > > I closed the seacock and we manned the manual pump. Once the water was > below the floorboards we let the electric do its job. > > One of the arms that held the lid in place broke at the lower end. > Luckily we were aboard and found the leak. There was not excessive > corrosion on the strainer, so I don't think the weakness could have been > detected. Time to re-think leaving seacocks open when I'm off the boat! > > -- > Joel > 301 541 8551 <(301)%20541-8551> >
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