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Post by NZL50505 on Oct 27, 2021 8:19:03 GMT
Best practise says the bilge pump should exit as high as possible somewhere on the centreline - which usually means somewhere on the transom. This means you’re less vulnerable to being heeled when trying to evacuate water. And it’s another reason for needing at least one high power pump onboard that can still pump fast against a decent head of at least 1m. And that is my plan when my mechanic has time to run the correct routing. But as a stop-gap he’s going to use one of my existing high outlets on the beam (probably one of the holding tank overflows which are just below the rubbing strake). He’s due to start work on the new setup tomorrow (Covid delays etc). I was thinking of using the same hose as the original bilge pump, just adding a Y connector after the pump, but I guess that it would be safer to add a second hose and thru-hull...the only issue is that the port side is really busy already, so running another hose will not be easy, so I will need to look into running it on starboard cheers Yes you could add a Y connector so you have you small / low power ‘scavenger’ bilge pump sharing the same outlet as a bigger / high power ‘emergency’ pump but it’s not ideal - if you had the bilges full and both pumps running then best case the smaller pump will be restricted and wurst case it could back-flow. A non-reverse valve would help but ideal solution is dedicated new through-hull when you can get around to it.
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Post by NZL50505 on Oct 27, 2021 8:19:55 GMT
I was thinking of using the same hose as the original bilge pump, just adding a Y connector after the pump, but I guess that it would be safer to add a second hose and thru-hull...the only issue is that the port side is really busy already, so running another hose will not be easy, so I will need to look into running it on starboard cheers Yes you could add a Y connector so you have you small / low power ‘scavenger’ bilge pump sharing the same outlet as a bigger / high power ‘emergency’ pump but it’s not ideal - if you had the bilges full and both pumps running then best case the smaller pump will be restricted and worst case it could back-flow. A non-reverse valve would help but ideal solution is dedicated new through-hull when you can get around to it.
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nigelhopkins
Full Member
Posts: 27
Jeanneau Model: Sun Odyssey 42i
Yacht Name: Skiron
Home Port: Preveza
Country: Greece
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Post by nigelhopkins on Aug 31, 2023 7:34:57 GMT
This morning I’ve repaired this same fault on my 42i. It was a ‘twig-like’ piece of debris stuck in the rubber flipper valves. The debris was only 20mm long but enough to cause this problem. It’s a pain to get the pump off the bulkhead and I’d recommend putting a towel or piece of tarp underneath to catch/trap any screws that fall.
Now in need of physio/sports massage for a stiff neck!!
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