Patrick, Yes that's the unit. The bolt with the wing nut failed. The result was the equivalent of a 2 inch hole in the boat. That's 80 gallons per minute. Luckily, I have a large bilge!
Joel On Mon, Sep 11, 2017 at 1:04 PM, Patrick Davin via CnC-List < cnc-list@cnc-list.com> wrote: > 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> >> > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > -- Joel 301 541 8551
_______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
