Anchor locker drainage

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Petemait
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Anchor locker drainage

Post by Petemait »

I have a drainage question with my 1983 Riviera 2807.

The anchor and rode lockers at the bow drain directly into the bilge. A hose runs from the bottom connector and dumps right by the forward bilge pump. When there is a good rain storm, this locker catches a decent amount of water.
Does anyone know if this locker should just drain into the bilge as it is now, or should it be going to a through hull fitting overboard?
I guess it's not incredibly important either way but it is nice to have a dry bilge.
Would appreciate anyone's thoughts.

While I'm at it, i also noticed today that this forward bilge pump, pumps the water out slightly below the water line. I feel like this may be wrong?

Thank you,
Pete

1983 Riviera 2807

Boston, MA
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Re: Anchor locker drainage

Post by km1125 »

I would not be comfortable with a bilge pump discharge below the waterline. The only thing stopping water from coming back into the boat would be the check valves on the pump, and those check valves should only be used on positive displacement pumps. What type of pumps do you have for bilge pumps?

Also, any through-hull that exits below the waterline (or even real close to it) should have a sea valve on it. Most bilge pump discharges are usually SEVERAL inches over the waterline, up to a foot. The ones that exit less than a foot should also have a loop in the discharge hose that goes up much higher before it drops down to the discharge.

You could re-route that anchor locker drain line to a through-hull, but the discharge should have some type of a clamshell over it so that water doesn't get pushed back in there when you're bashing waves.
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Petemait
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Re: Anchor locker drainage

Post by Petemait »

km1125,
Thank you for your response. I am still new to the boat and was shocked to see the pump going to a below waterline through hull. That just moved to the top of the list of things to fix.
As far as the anchor locker drain, i may have to add a thru hull fitting.

Thanks again for your help.
Pete

1983 Riviera 2807

Boston, MA
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Re: Anchor locker drainage

Post by bud37 »

Petemait wrote:QR_BBPOST km1125,
Thank you for your response. I am still new to the boat and was shocked to see the pump going to a below waterline through hull. That just moved to the top of the list of things to fix.
As far as the anchor locker drain, i may have to add a thru hull fitting.

Thanks again for your help.
I am curious....is the pump discharge on the hull side on the boot stripe or just barely above the stripe ?
FWIW.....The above is just my opinion.
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Re: Anchor locker drainage

Post by Petemait »

The bilge does indeed pump out below the waterline. I will install a seacock. I wonder if this was the original design or a retrofit by a previous owner.
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Pete

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Re: Anchor locker drainage

Post by Phrancus »

is that waterline original?

the white one seems a bit oddly placed too?
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Re: Anchor locker drainage

Post by km1125 »

The white one seems placed more typical for a bilge pump.

I wonder if the black one is actually submerged when the boat is in the water. Hard to tell from the angle of the pic, but it seems like that's a part of the hull that starts sweeping up to the bow and that the waterline is a few inches below that even though the bottom paint goes up higher.
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Re: Anchor locker drainage

Post by Viper »

Ya I agree with KM. That fitting you're talking about seems to be above the water line. The top of the black bottom paint isn't your water line. The lower part of that that's stained is the water line from what I see.
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Re: Anchor locker drainage

Post by bud37 »

Thats why I asked....good pic......original location is not generally in the bottom paint.....but does seem to be above the waterline mark but not high enough IMO, based on loading and if there was a leak to get started the boat would be lower in the water then and make matters worse.
FWIW.....The above is just my opinion.
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Re: Anchor locker drainage

Post by Petemait »

Thank's for everyones reply. I also realized that it might actually be at the waterline or slightly above. Either way it made me nervous and i installed a bronze seacock and i will add a loop just incase if people recommend that.

Believe it or not, the hose was directly hose clamped to the plastic through hull fitting. There was no nut on the inside so it was only the sealant holding the fitting in place. One of a few scary things i have found from previous owners.
Thanks again,
Pete

1983 Riviera 2807

Boston, MA
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