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Daggerboard Slot Water Storage

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Started 3 years ago by Bermudaboy
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Bermudaboy
Member

I've made a few waterbags, long and slender from sealable Seattle drybag fabric. I use it to store water in daggerboard slot \, deplacing the saltwater there, thereby reducing board displacement. I pull it out when dagger is to retracted back into the slot for reaching and downwind.

Getting a real trusty worthing cap/nozzle is always a worry, as well as the bag ripping or getting holes, anyone with any experience with a trustworthy method for putting nozzle/cap on fabric waterbag?

Another idea which would be best, but can't seem to figure out or find, would be a long slender thin walled container, or to resape, or reblow a thin plastice bottle, utilizing the existing cap/nozzle, and reshaping the bottle to long slender container. I seem to recall see long slender clear container for refrigerators but can't seem to find on net...

Ideal size for the container is 30"L x 1"W x 6.5H... Anyone have that laying around?

Posted 3 years ago #
BeastOarman
Member

Can't you just bring a straw and drink the water that's already in the slot?
Ok, more seriously, have you looked at collapsible bottles like Platypus? Cascadedesigns.com
There were a bunch of this type on Amazon for cheap.
Of course dimensions are key, but it would seem soft sides you can press it in there to fit?
Good luck!

Posted 3 years ago #
Bermudaboy
Member

Think I found a solution... and it was in my box of gear that I've purchased and never used (which accounts for 90% of my gear) An air pillow approximately the same as my ideal dimensions, and its ribbed so that it doesn't get wider than an inch, and holds 2.5 liters.. I bought this a few years back for a seat for my bum when paddling and totally forgot about it till sorting thru all my junk and playing prepare my gear for EC for the 11th million time. Going to put a tether on it and try it out soon.. https://goo.gl/photos/1yBEESohDjqLWr7n6

Posted 3 years ago #
danceswithmullet
Member

Looks like a Colostomy bag. Think about that when you get thirsty and you won't get thirsty. DWM

Posted 3 years ago #
Bermudaboy
Member

Tested fit this evening and everything looks better than I thought, Sat look like wind, but also our first snow... maybe just a quick real test.....

photos: https://goo.gl/photos/Maz4LmGX4TrvRjFT6

Posted 3 years ago #
Bermudaboy
Member

Bermudaboy wrote:

Tested fit this evening and everything looks better than I thought, Sat look like wind, but also our first snow... maybe just a quick real test.....

photos:

https://goo.gl/photos/Maz4LmGX4TrvRjFT6

Posted 3 years ago #
danceswithmullet
Member

Seriously I would be concerned about drinking out of something not FDA approved for potable water. Especially if it was made in China. That dark blue bag in the sun warming the water would add to the effect. You might end up with undrinkable water. Just a thought. DWM

Posted 3 years ago #
Bermudaboy
Member

With u on that DWM and a concern, like with other heat sealable fabric bags I have made/used in the past, I try to leech out as much as possible all the "good stuff", by filling with water and draining every other day, well in advance of the event.. My guess though is that the technology for this pillow and my dromedary, are essentially the same... and the pillow is made on the democratic renegade island Formosa not PRC. Still would like to find way to modify hard body container for the application... but no luck so far, other day tried rethermoforming 2 liter bottle, but not much luck as it shrunk in size, more than I could reshape it!...

ps: a

Posted 3 years ago #
Bermudaboy
Member

Some reason the ps didnt wanna show itself... anyway I found the below somewhere on internet, and everyone knows that if its on the net, it must be true:

A lot of potentially deleterious things can diffuse out of a plastic into a food or beverage, and some plastics are more of a risk than others. Some plastics that are benign at room temperature and neutral pH can leach xenoestrogens or mutagens if exposed to high temperatures or extremes of pH.

The concern about contamination of food and water from plastics comes from problems associated with polycarbonates, polyvinyl chloride, and to a lesser degree, polyethylene terephthalate ("polyester") and epoxies. Bisphenol-A and phthalates are the principal contaminants of interest, although other compounds are coming under more scrutiny.

Nalgene bottles, which are food-grade, are polycarbonate and have been shown to leach BPA. Many conventional bladders for hydration packs are food-grade PVC, but leach both BPA and phthalates. Aluminum beverage cans are lined with food-grade epoxy which leaches BPA. In Japan, aluminum beverage cans are now lined with polyester due to leaching from epoxies. Polyester is thought to be the safest of the questionable plastics, but food-grade polyester can leach antimony, phosphites, and acetaldehyde (which has a bad taste but isn't very toxic).

Polyurethane is not considered one of the questionable plastics. Many companies that make hydration bladders have switched from PVC to TPU (thermoplastic urethane) due to concerns about leaching from PVC and the better mechanical properties of TPU. Most manufacturers of medical plastic containers and tubing have also switched from PVC to TPU. Heat sealable nylon is lined with TPU.

Even if there are as-yet unrecognized contaminants leaching out of TPU containers, a water bag is made to contain cold water at neutral pH, not something hot, acidic, or alcoholic that would tend to dissolve hazardous solutes in the plastic.

From a pretty basic review of current literature, I think it can be guessed that the TPU lining of heat-sealable nylon, "food grade" or not, is likely to be safer than a polycarbonate Nalgene water bottle, an aluminum soda can, or any of the widely available PVC hydration bladders.

Posted 3 years ago #
Bosun
Member

And to think, as kids, we drank right out of the hose! It is a wonder that we lived through it! :-)

al

Posted 3 years ago #
danceswithmullet
Member

You have done your homework and that is why all my beer comes out of a glass bottle or keg these days!DWM

Posted 3 years ago #
Bermudaboy
Member

Bosun

Ah just a fewgood ole oral days in Clearwater, that popped up by reading your post:

-Letin all the hot summer rubber tastin water grsh from my mouth and down me chin, finally, the arrival of the Cool stream...at every neighbors yard I mowed...

-Siphoning gasoline by mouth & hose from moms car to the green ted william outboard can...followed by a routine physical beating with the belt for stealing and doing downright-dumb-dangerous-stuff you've been told not to do boy..

-Castnetting all over Allens Creek with teeth gripping muddy lead weights and saltier water & cleaner mullet, the closer I'd get to the mouth Tampa Bay.

- Chief Watertreatment Chemist of Clearwater (proud dad), tempting (or jokingly, still not sure) me to drink the effluent at the wastewater plant at junction of Gulf to Bay & Courtney Campbell. DIDNT DO IT.

Posted 3 years ago #
Bermudaboy
Member

Somewhat more piece of mind, (though I won't drink from it for normal routine), Got this response below back this morning... one other point, in the daggerboard slot, the bag is continually exposed/wet by contact with saltwater around it, so hopefully max temp is never getting much over 80F...

Also startin, thinkin of testing as "airbag filler" in the slot, when not in the EGs and for long beating days when daggerboard is going to be down all day, if I can blow enough air into iit to compress agains the innner walls and top of bottom gasket (so its not floated up/out by gulf of mexico waterpressure), would increase bouyancy of board, as well might reduce turbulence water drag of normal in and out of water through the gasket slit...

"Hello,

Thank you for contacting . The Cush is made of polyester and has a TPU layer that is bonded to the inside of the fabric.

Happy Trails, "

Posted 3 years ago #
BeastOarman
Member

Sounds like you may have a nice multipurpose solution worked out, nicely done!
I don't know anything about windsurfing, is chafing a potential issue?
Or bursting if you hit an oyster bar with your board down?
Fun to see you adapt !!

Posted 3 years ago #
Bermudaboy
Member

BeastO, all of the above... first &only time Ive made it Northwest Cape, was quite scared to find that my homemade fabric bag, had been pinced by daggerboard possibly during grounding and had lost all its water..

Posted 3 years ago #
Bermudaboy
Member

Tested the Cush, waterbag yesterday in pretty rough conditions... Did fairly well and stayed in slot. With dagger up, it and MSR drom are just too much stuff and get in way of feet, so plan tie off forward of mast track for reaching/down wind days. Major problem that still needs solution, is the 2mm lanyard line sometimes got jambed between dagger and wall, when I was partially raised the dagger... I hadn't noticed before, but my 2 liter, blue camelback, really had rubbery water taste... serious, many mental suggestion, Hmmmm? Didnt drink from Cush yet, its still on about its 6th water leaching...

Posted 3 years ago #

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