I recently redid the bilge hose and replaced the check valve with a brand new one as well. Your experience and assessment makes sense if you don't have a check valve.
<https://www.avast.com/en-us/lp-safe-emailing-3108-a?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=oa-3108-a> Virus-free. www.avast.com <https://www.avast.com/en-us/lp-safe-emailing-3108-a?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=oa-3108-a> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Thu, Jun 1, 2017 at 9:26 AM, Joe Boyle via CnC-List < cnc-list@cnc-list.com> wrote: > We had a nasty scare last night after our Wednesday night race. We were > motoring back to the dock - about a half hour trip and I climbed down the > companionway into about 2 inches of bay water. The bilge was full and > overflowing as we motored along. Inspection revealed no leaks that i could > see from the engine compartment - shaft log, water pump, muffler and > exhaust and thru hulls were all fine. I jump up to the head and check all > 3 thru hulls there - all dry. > > We finally get the auto bilge pump working and pumped all the water out - > and no more leak. I believe that the float switch may have been stuck. > > So here's my theory - under power the 30 MK1 tends to squat and the bilge > outlet is below the water on the stern. We had had rain the week before > and I had neglected to turn on the manual switch to get out the last of any > water in the bilge - the float switch always leaves a few cupfuls in the > bilge. I am thinking that while under way with the outlet submerged, the > bilge pump cycled on. Then - as usual - the remaining water in the hose > flowed back into the bilge. But this time with the outlet underwater, it > started water siphoning into the boat. > > After cleaning it all up I checked it in the morning - and it was dry as > usual. The bilge hose has a high loop in it but no air break or check > valve. > > I am thinking a check valve or an air break would keep this from happening > again - any opinions would be welcome. > > Oh - and I think I will fix the manual bilge pump that I have been putting > off for a while! > > thanks, > > Joe > > _______________________________________________ > > 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! > > -- Brian Davis 1980 C&C Landfall 38 "Nina" Southeast Florida
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