swampthing
regular
Reged: 01/03/2008
Posts: 100
Loc: Plymouth UK
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Im installing a second manual bilgepump for emergency use. Do I have to route outlet tubing to transom or can I fit the outlet skin fitting in hull side, high as pos above water line. Is this bad practise? Hunter Europa. Thanks
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I must go down to the sea again, the lonely sea and sky.
I left my vest and pants there, I wonder if theyre dry?
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bazonbeleza
regular
Reged: 19/11/2005
Posts: 745
Loc: faro, portugal, & Liverpool fo...
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not much freeboard with a europa, and mine used to spend a lot of time sailing on its ear so just check next time you're out that the place you want to site it is not under water too often.
having said that both my bilge pumps exit on the hull sides on my current boat.
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Nauticat sailors do it in comfort (and carpet slippers)
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AvastMark
regular
Reged: 28/11/2006
Posts: 304
Loc: Nottingham
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Both my bilge pumps exit on the side too.
Try and position the fitting so that you can loop the pipe high above the water line at all angles of heel.
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VicS
regular
Reged: 13/07/2002
Posts: 9603
Loc: Home: Kent. Boat: Chichester
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Quote:
Try and position the fitting so that you can loop the pipe high above the water line at all angles of heel.
If you do that it will always leave water in the pump. It might be prudent to drain that out at lay-up time to avoid it freezing and damaging the pump.
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Old Chemists never die, they just fail to react
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roly_voya
regular
Reged: 05/02/2004
Posts: 1049
Loc: Pembrokeshire Wales
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If you offset the pump to one side of the bilge they take the outlet up to deck level then accross and through the opposite side of the hull should aviod syphoning. Often a shorter and therefore more efficient rout than through the transom. As an alternative ther is no reason it cant go either through the deck or the cabin side. Lots of commercial vessels do this and I suspect its not done on yachts for fear of staining the deck rather than because its a bad place to pump to.
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boatmike
regular
Reged: 30/06/2002
Posts: 4489
Loc: Solent
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An alternative is to "siamese" the bilge lines to your existing outlet, but if you do this you need to fit in line one way valves (ASAP stock them) to the pipes otherwise you will just pump from one bilge to the other! Alternatively a change over valve but then you need to have it set right and wouldn't be able to pump both at the same time.
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Captainslarty
regular
Reged: 12/08/2007
Posts: 2012
Loc: Currently La Coruna Spain
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If you have a self draining cockpit with decent drains, feed it to the cockpit.
The pipe runs are shorter, and as you said, its for emergency use.
I feed 2 rule 3700's and a 240v mother of all pond pumps  to 3 outlets low on the aft bulkhead directly into the cockpit..
Hope to gawd I never need them lol...
I do have a deep cockpit, but installed 2 new 3 inch drain tubes directly through the transom.. to add to the exisitng somewhat undersized bath plug hole type drains.
With the direct to cockpit, you dont need valves or loops or highrises.. you can even use plastic waste pipe and fittings with a small flexi piece to the pump.
A good tip if you go this route is to fit a small flap valve over each outlet - looks neater and stops any backflow if ya get pooped !
Joe
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PM me for info re SSB's etc. Bought, sold, repaired, fitted and optimised.
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osp
regular
Reged: 30/12/2004
Posts: 171
Loc: Solent
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But if you have shipped a fair amount of water then the cockpit will have flooded and your pumped water will not drain. Please Correct me if i'm wrong.
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Captainslarty
regular
Reged: 12/08/2007
Posts: 2012
Loc: Currently La Coruna Spain
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Hi Osp, no, that can't happen. the floor of the cockpt is 18" above the waterline. the saloon floor is on the waterline, the bilge below the saloon floor is apx 3 foot 6" deep - engine under saloon.
Battery box (1000 Ah) is fully waterproof - for'ad with snorkel system for vents. to provide power i an emergency for pump systems. plus, of course  manual pumps..
The dump to cockpit in emergency seems a logical idea to me ?
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PM me for info re SSB's etc. Bought, sold, repaired, fitted and optimised.
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osp
regular
Reged: 30/12/2004
Posts: 171
Loc: Solent
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Ah ! My cockpit sole is considerably less - probably 4 inches tops - when sailing at 25 degrees water bubbles up the drain. Looks like draining in the cockpit would work for you but probably not for me !
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