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30-11-2014, 14:35
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#16
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Moderator Emeritus
Join Date: May 2007
Location: Ohio
Boat: Now boatless :-(
Posts: 11,580
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Re: Anchor locker drain too low
Quote:
Originally Posted by Terra Nova
Forget about a check valve. Make sure the bottom of the locker is well above the waterline. Insure the the drains are open. If necessary, cover the outside of each drain with a small clam-shell vent cover, facing away from normal water flow, so it purges the locker and deflects water from intrusion.
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Agree.
The anchor locker does not necessarily have to be above the waterline but if it is below:
- It needs to be sealed from the outside waer
- You need to drain it to the bilge
- Or you need to install a bilge pump and pump it out
If water is getting into parts of the boat that it shouldn't - anchor locker to bilge - then you need to reseal the anchor locker.
If your boat is designed for the locker drain to be above the waterline and it isn't you need to figure out why the bow is so heavy and correct that.
If you are sure it is just splashing the the clamshell cover may help, but if the boat is plowing, it may not.
For me the real issue is why the locker is draining into the cabin.
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30-11-2014, 14:40
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#17
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Moderator Emeritus
Join Date: Oct 2013
Location: Jacksonville/ out cruising
Boat: Island Packet 38
Posts: 31,351
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Re: Anchor Locker Drain Too Low
The clam shell Terra Nova posted will cause a low pressure area over the drain with water flowing over it, which will actually pull water from the locker. If it's just getting in from pressure from forward movement and is not under the water line, the clam shell cover should be all the fix you need. I'd definitely try it before doing anything major.
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30-11-2014, 14:47
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#18
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Re: Anchor Locker Drain Too Low
Hmmm interesting. I will give that a shot. I had originally glassed the locker because the bulkhead at the foot of the v berth was moist and showing signs of rot (mold). I really, really thought I had done a thorough job so it's hard to understand where the water is coming into the rest of the boat from. The boat is out of the water so I'm going to do a very thorough survey of the bow under the waterline.
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Unbusted67 or just Ben
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30-11-2014, 14:49
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#19
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Re: Anchor Locker Drain Too Low
Is it possible that an over pitched prop would cause the bow to squat down in the water? It is really low in the water when motoring. Maybe a good four inches under the bow wave. IMO we are not that loaded down in the bow especially because we are trimmed properly when not under way.
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Unbusted67 or just Ben
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30-11-2014, 17:07
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#20
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Registered User
Join Date: Oct 2014
Location: Bay of Fundy,Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 3,197
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Re: Anchor Locker Drain Too Low
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30-11-2014, 17:35
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#21
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Registered User
Join Date: Oct 2014
Location: Bay of Fundy,Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 3,197
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Re: Anchor Locker Drain Too Low
My boat was built with a Crash Bulkhead to Lloyds & DetNorskeVeritas standards in 1984.It came with the aluminum LPG tank & solenoid installed in the anchor locker & I'm happy with that. The original rubber seal around the propane line,where it passed thru this watertight bulkhead, rotted from age,& I replaced that.
The crash bulkhead is a requirement in Euro boats,& IMHO should be a requirement in all boats.It acts as a second "bow" in the event of a collision,& is an inexpensive option during construction,plus,there is no stink or water intrusion into the v-berth,as there can be with the N.American method of putting a hatch thru this bulkhead.
My only complaint is that the anchor locker drain hole goes out thru the stem.This allows water to be driven in thru this drain in very rough conditions.
I will install drains in back corners of locker,allowing water to go out both port & stbd bow cheeks.
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30-11-2014, 20:59
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#22
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Re: Anchor Locker Drain Too Low
I see nothing wrong with a propane tank in an anchor locker. The whole concern would be pooling propane but as you mentioned your drain is I. The bottom of the well so any leaking propane would just drain out.
As for your hole issue, that pretty much describes what i am experiencing. I may go for a couple of extra drains though the thought of drilling more holes in my hull doesn't really jibe well.
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Unbusted67 or just Ben
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01-12-2014, 12:05
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#23
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Registered User
Join Date: Oct 2014
Location: Bay of Fundy,Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 3,197
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Re: Anchor Locker Drain Too Low
unbusted67 Longer you own her,the less you will be concerned about holes & such,as long as the mods are well thought out & done "properly".There is no perfect fits all vessel. Most can use some improvement.
I think I will use white delrin/nylon normal thru hulls,intended for hose,& saw them off flush to the inside nut,as I only have to go thru 5/8" of solid f-glass hull. They are well above W/L,the white will blend with my white hull,& I don't like the idea of protrusions,such as clamshells,etc,that could get bumped or catch on something.That is just my opinion,cosmetically thinking.
cheers/ Len
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01-12-2014, 12:41
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#24
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Registered User
Join Date: Apr 2007
Location: Marina del Rey, California
Boat: President 43 Sportfish
Posts: 4,105
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Re: Anchor Locker Drain Too Low
Quote:
Originally Posted by deblen
...I will use white delrin/nylon normal thru hulls,intended for hose,& saw them off flush to the inside nut,as I only have to go thru 5/8" of solid f-glass hull...
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Your proposed method will insure that not all the water will drain out.
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1st rule of yachting: When a collision is unavoidable, aim for something cheap.
"whatever spare parts you bring, you'll never need"--goboatingnow
"Id rather drown than have computers take over my life."--d design
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01-12-2014, 17:12
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#25
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Registered User
Join Date: Oct 2010
Location: michigan
Boat: CORBIN 39
Posts: 338
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Re: Anchor locker drain too low
Quote:
Originally Posted by Terra Nova
Forget about a check valve. Make sure the bottom of the locker is well above the waterline. Insure the the drains are open. If necessary, cover the outside of each drain with a small clam-shell vent cover, facing away from normal water flow, so it purges the locker and deflects water from intrusion.
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I cannot believe all the dumb answers to this no brainer question. I had the same problem, never gave it a second thought. Block the forward facing hole and drill another hole in the side, cover with this clam shell plate mentioned above. Is it that hard to comprehend?
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01-12-2014, 17:21
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#26
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Registered User
Join Date: Feb 2008
Location: North Charleston, SC
Boat: Camano Troll
Posts: 5,176
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Re: Anchor Locker Drain Too Low
Quote:
Originally Posted by unbusted67
I see nothing wrong with a propane tank in an anchor locker. ...........
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Fine but what are your qualifications in the field of flammable gasses??
Do you feel you are more qualified than the folks who write the ABYC specifications? The ABYC is very specific in its requirements and throwing a propane tank in an anchor locker would not be compliant with these specifications.
Suggesting that someone ignore established safety regulations is not very responsible.
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HIGH COTTON
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01-12-2014, 17:31
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#27
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Registered User
Join Date: Apr 2007
Location: Marina del Rey, California
Boat: President 43 Sportfish
Posts: 4,105
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Re: Anchor Locker Drain Too Low
If you run into something hard, it is likely your bow will be damaged.
If someone runs into you, it could be anywhere.
So it seems to make sense that the bow is the most dangerous location possible for a propane tank.
__________________
1st rule of yachting: When a collision is unavoidable, aim for something cheap.
"whatever spare parts you bring, you'll never need"--goboatingnow
"Id rather drown than have computers take over my life."--d design
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01-12-2014, 18:43
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#28
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Registered User
Join Date: Jun 2014
Location: Up the mast, looking for clean wind.
Boat: Currently Shopping, & Heavily in LUST!
Posts: 5,629
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Re: Anchor Locker Drain Too Low
As to the anchor locker problem, if the wood in there is all epoxy sealed, then raising the floor is relatively easy. Just get some 2-part pour foam such as this Fiberglass Supply - Pour Foam & pour it in until the bottom of the locker is at a height of your liking. As long as the surfaces where you're pouring the foam are, are clean, it'll bond to them fairly well.
Then, simply glass in a new "floor" over top of it, & install a new drain in the chain locker.
And if for some reason you don't like it, it's not all that difficult to remove. For the most part, a sharp filet knife will make quick work of it. After of course, you cut out the glass over top of it.
Also, it should take care of any small, pesky leaks, which you describe in your current locker. Because as it mixes & expands, it tends to fill most small holes & crevices. Just be careful with it, as it does exert a fair bit of pressure when it's expanding. Enough to rupture some sealed spaces if one's not careful, & puts in too much, without leaving a way for it to expand to it's full size.
- On the propane locker bit, where is it located? I ask as I'm picturing it being up in the bow (where most anchor lockers are). A locale about as far from one's stove as it's possible to get.
Also, just based on common sense, I would think that chain & line going into & out of a locker under a fair bit of load would be VERY hard on any tank valves & hoses, even if it didn't snag on them.
Plus galvanized chain would be pretty hard on rubber hoses from an abrasion perspective. Not to mention that if the tank is in a bow locker, it's going to be subject to being soaked & or submerged in a lot of seawater. Probably not the best thing for a steel & or aluminum tank, valve, & hand wheel.
And what about any solenoid valves, & their attendant wiring? Stuck in there with all of the above "hostile environmental" factors.
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01-12-2014, 19:07
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#29
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Anchor Locker Drain Too Low
Quote:
Originally Posted by rwidman
Fine but what are your qualifications in the field of flammable gasses??
Do you feel you are more qualified than the folks who write the ABYC specifications? The ABYC is very specific in its requirements and throwing a propane tank in an anchor locker would not be compliant with these specifications.
Suggesting that someone ignore established safety regulations is not very responsible.
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Ahhhhh I've installed propane systems professionally to AbYC standards. Have you?
Here you go buddy. Read up.
https://law.resource.org/pub/us/cfr/....A-01.1993.pdf
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Unbusted67 or just Ben
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02-12-2014, 04:26
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#30
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Senior Cruiser
Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 49,086
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Re: Anchor Locker Drain Too Low
Quote:
Originally Posted by unbusted67
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As you've described it, your installation does not comply with A BYC A-01.
It's not a dedicated locker, nor gas-tite to the interior, and the drain gets submerged.
I suggest you re-read Section 1.12
LOCATION AND INSTALlATION - CYLINDER AND CONNECTED DEVICES
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Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"
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