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#1
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My chain locker is self draining. I was about to bore holes in the
corners for some 3/4" through hulls and then screw clam shells on the outside when I ran across some really neat looking hooded drains on ebay. These things are heavy 2" wide cast and polished stainless clamshells that are threaded on 3/4" Maralon through hulls. No exposed screws. Missed bidding on them but asked the seller Julia Farichild, if she had any more. It took a couple of weeks to get them but they are just what I needed and only $10 each. That is less than through hulls and those cheap stamped metal clamshells. Turns out her brother makes them for a couple of production builders and never tried to sell them outside so she is feeling out the after market on eBay. To spare here from the spammers, if you are interested email me and I will send you here address. No connection, just a real neat product found by serendipity. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#2
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On Mon, 06 Oct 2003 21:10:51 -0400, Glenn Ashmore
wrote: My chain locker is self draining. I was about to bore holes in the corners for some 3/4" through hulls and then screw clam shells on the outside when I ran across some really neat looking hooded drains on ebay. These things are heavy 2" wide cast and polished stainless clamshells that are threaded on 3/4" Maralon through hulls. No exposed screws. Missed bidding on them but asked the seller Julia Farichild, if she had any more. It took a couple of weeks to get them but they are just what I needed and only $10 each. That is less than through hulls and those cheap stamped metal clamshells. Turns out her brother makes them for a couple of production builders and never tried to sell them outside so she is feeling out the after market on eBay. To spare here from the spammers, if you are interested email me and I will send you here address. No connection, just a real neat product found by serendipity. Glenn, and everybody, I have been dealing with Julia and Steve for a while now, and they're stuff is absolutely first rate quality. His welds in the stainless are some of the best I've ever seen, and I was a rigger for a while. I bought four heavy transom loops with nice oval faceplates for my boat. Have yet to install them, but they are stout, perfect cosmetically, and they were cheap. Give them a little slack on answering, Julia's having back trouble right now, though. Here's a link to their items on Ebay: http://www.stores.ebay.com/id=75449472 (Not connected, just a happy customer). Donny 1974 Trojan Sea Raider 25' www.picturetrail.com/sixbennetts http://thebayguide.com/rec.boats/donny_bennett.html |
#3
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Unless the drains are always above water, even when pitching hard in
heavy going, I'd make the holes a lot smaller than 3/4". With a hole that big you'll be taking in a lot of water on the down stroke and then draining it back out on the up. The dynamics are such that the water is more likely to go in than out, so you end up with a lot of weight in the worst possible place. Check valves are a tempting solution, but will likely stop working when chain goo gets in them. Swee****er (Swan 57) had 3/8" holes, I think. The good news is that it's much easier to put a restrictor in than to bore them out.... Jim Woodward www.mvFintry.com Glenn Ashmore wrote in message news:Ltogb.52336$sp2.52271@lakeread04... My chain locker is self draining. I was about to bore holes in the corners for some 3/4" through hulls and then screw clam shells on the outside when I ran across some really neat looking hooded drains on ebay. These things are heavy 2" wide cast and polished stainless clamshells that are threaded on 3/4" Maralon through hulls. No exposed screws. Missed bidding on them but asked the seller Julia Farichild, if she had any more. It took a couple of weeks to get them but they are just what I needed and only $10 each. That is less than through hulls and those cheap stamped metal clamshells. Turns out her brother makes them for a couple of production builders and never tried to sell them outside so she is feeling out the after market on eBay. To spare here from the spammers, if you are interested email me and I will send you here address. No connection, just a real neat product found by serendipity. |
#4
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That is true IF you mount them straight up and down but if you face them
aft they will still drain when level but when they get below the water the passing flow will create a venturi effect and they act as bailers. Fast moving water on the outside and still water on the inside makes lots of negative pressure. Jim Woodward wrote: Unless the drains are always above water, even when pitching hard in heavy going, I'd make the holes a lot smaller than 3/4". With a hole that big you'll be taking in a lot of water on the down stroke and then draining it back out on the up. The dynamics are such that the water is more likely to go in than out, so you end up with a lot of weight in the worst possible place. Check valves are a tempting solution, but will likely stop working when chain goo gets in them. Swee****er (Swan 57) had 3/8" holes, I think. The good news is that it's much easier to put a restrictor in than to bore them out.... Jim Woodward www.mvFintry.com Glenn Ashmore wrote in message news:Ltogb.52336$sp2.52271@lakeread04... My chain locker is self draining. I was about to bore holes in the corners for some 3/4" through hulls and then screw clam shells on the outside when I ran across some really neat looking hooded drains on ebay. These things are heavy 2" wide cast and polished stainless clamshells that are threaded on 3/4" Maralon through hulls. No exposed screws. Missed bidding on them but asked the seller Julia Farichild, if she had any more. It took a couple of weeks to get them but they are just what I needed and only $10 each. That is less than through hulls and those cheap stamped metal clamshells. Turns out her brother makes them for a couple of production builders and never tried to sell them outside so she is feeling out the after market on eBay. To spare here from the spammers, if you are interested email me and I will send you here address. No connection, just a real neat product found by serendipity. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#5
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Glenn Ashmore wrote:
That is true IF you mount them straight up and down but if you face them aft they will still drain when level but when they get below the water the passing flow will create a venturi effect and they act as bailers. Fast moving water on the outside and still water on the inside makes lots of negative pressure. Jim Woodward wrote: Unless the drains are always above water, even when pitching hard in heavy going, I'd make the holes a lot smaller than 3/4". With a hole that big you'll be taking in a lot of water on the down stroke and then draining it back out on the up. The dynamics are such that the water is more likely to go in than out, so you end up with a lot of weight in the worst possible place. Check valves are a tempting solution, but will likely stop working when chain goo gets in them. Swee****er (Swan 57) had 3/8" holes, I think. The good news is that it's much easier to put a restrictor in than to bore them out.... Jim Woodward www.mvFintry.com Glenn Ashmore wrote in message news:Ltogb.52336$sp2.52271@lakeread04... My chain locker is self draining. I was about to bore holes in the corners for some 3/4" through hulls and then screw clam shells on the outside when I ran across some really neat looking hooded drains on ebay. These things are heavy 2" wide cast and polished stainless clamshells that are threaded on 3/4" Maralon through hulls. No exposed screws. Missed bidding on them but asked the seller Julia Farichild, if she had any more. It took a couple of weeks to get them but they are just what I needed and only $10 each. That is less than through hulls and those cheap stamped metal clamshells. Turns out her brother makes them for a couple of production builders and never tried to sell them outside so she is feeling out the after market on eBay. To spare here from the spammers, if you are interested email me and I will send you here address. No connection, just a real neat product found by serendipity. Yeap, That's the way most of us that are too stupid to remember to put the plug in the boat, get all the water out when fishing. Just start moving and it will suck all the water out, then put the plug in. Donald -- I'm building a Steel Robert's 434. You can sneak a peek if you wish by clicking on me link below. http://bellsouthpwp.net/d/o/donrayp/ 'USA, Home of the best politicians money can buy' |
#6
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That was not our experience with Swee****er's drains, which had
clamshells. They regularly streamed water out on the up pitch. Since the deck was never under water, this was always from water that had come in on the down stroke. I think the dynamics are more complex than you describe. Remember that in heavy going, the water in the wave is itself in a complex motion. Also, of course, if you put the bow w/l two or three feet under, you have a significant pressure. Finally, as you go up a wave, the boat slows markedly at the same time the bow is deepest. But, as I said, it's easy to make the holes smaller, so you can wait and do it if and when you have the problem. Jim Woodward www.mvFintry.com Glenn Ashmore wrote in message news:9_zgb.55854$sp2.25562@lakeread04... That is true IF you mount them straight up and down but if you face them aft they will still drain when level but when they get below the water the passing flow will create a venturi effect and they act as bailers. Fast moving water on the outside and still water on the inside makes lots of negative pressure. Jim Woodward wrote: Unless the drains are always above water, even when pitching hard in heavy going, I'd make the holes a lot smaller than 3/4". With a hole that big you'll be taking in a lot of water on the down stroke and then draining it back out on the up. The dynamics are such that the water is more likely to go in than out, so you end up with a lot of weight in the worst possible place. Check valves are a tempting solution, but will likely stop working when chain goo gets in them. Swee****er (Swan 57) had 3/8" holes, I think. The good news is that it's much easier to put a restrictor in than to bore them out.... Jim Woodward www.mvFintry.com Glenn Ashmore wrote in message news:Ltogb.52336$sp2.52271@lakeread04... My chain locker is self draining. I was about to bore holes in the corners for some 3/4" through hulls and then screw clam shells on the outside when I ran across some really neat looking hooded drains on ebay. These things are heavy 2" wide cast and polished stainless clamshells that are threaded on 3/4" Maralon through hulls. No exposed screws. Missed bidding on them but asked the seller Julia Farichild, if she had any more. It took a couple of weeks to get them but they are just what I needed and only $10 each. That is less than through hulls and those cheap stamped metal clamshells. Turns out her brother makes them for a couple of production builders and never tried to sell them outside so she is feeling out the after market on eBay. To spare here from the spammers, if you are interested email me and I will send you here address. No connection, just a real neat product found by serendipity. |
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