Rain Catcher? Anyone? - Page 2 - SailNet Community
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post #11 of 20 Old 08-02-2008
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... leaves and large bugs are rather rare on the open water.
So are chemical contaminants . Geez what kind of rain do you guys get?
Are you sure?

Has anyone tested rainwater from around the coasts and on the oceans?

I look at the damage done to the Shenandoah and Smokies from acid rain. The lawsuits filed by the North Eastern states against power plants and industies in the midwest for their pollution which carries all the way to Nerw England and beyond. The information available about contaminants in the air on the west coast that come from Asia. Particulate matter found precipitating across oceans away from their sources.

What makes you guys so sure that the rainwater falling on your boats and being imbibed into your bodies is clean?
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post #12 of 20 Old 08-02-2008
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RAIN WATER would seem to be naturally clean and pure most places. Water gets dirty when it hits the ground etc. Air generally contains very few bacteria etc. Bird poop etc is the most likely source of contamination. I mean really rain is close to being distilled water!!!!!!
No way.

There is a lot of pollution in the air. The water that precipitates out of the sky passes through those pollutants. Ever heard of "acid rain"? If you go the the Smokies national forest you can see the effects of acid rain. Visit the Shenandoah and see the effects of industrial pollution. The Park Service can show you pictures taken from view sites many years ago to compare with today. In the mid atlantic and many other regions there is also major pollution from internal combustion engines.

All this in the atmosphere where the water vapor collects, the water molecules often clustering around particles until they make a mass heavy enough to fall, whereupon they carry the particles down to ground level.

I look at how dirty my car is after after a light to moderate rain. It is much dirtier than before. A heavy, prolongued rain may leave it less dirty, but still not the condition as after washing with clean water from a hose fed by the local water system.

Sorry. We can debate or discuss how much pollution is in the atmosphere, and how much comes down with the rain. But there is no plausible foundation for claiming rain water is anything like distilled water. Maybe 300 yrs ago, but probably not then, either.

Last edited by Trekka; 08-02-2008 at 01:16 AM.
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post #13 of 20 Old 08-02-2008
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Not on this planet... most rain is caused when moisture condenses around small particulates in the air... that would tend to indicated to me, that the rain has a fair bit of particulate matter in it. This doesn't even address issues like chemical pollutants, like sulphur dioxide, one of the primary components of acid rain, volcanic ash, airborne dust from drought stricken areas or a million other sources of pollution. Airborne pollution can travel long distances, so the water from rainstorms over the open ocean isn't much better than that near coastal areas. Go ahead, get a bucket and catch some rainwater in, and cover it and leave it sitting in the sun for a week. It won't be the "clean" water you think it is after that time is my guess. Plenty of pollen, microbes, mold spores, etc in that rain water.

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RAIN WATER would seem to be naturally clean and pure most places. Water gets dirty when it hits the ground etc. Air generally contains very few bacteria etc. Bird poop etc is the most likely source of contamination. If you have a dedicated rain catcher that is stored clean until needed I doubt that any treatment is required..most places. Clean water does not support the growth of bacteria or algea. Microbes require nutrients such as phosphorus and nitrogen. rain usually does not contain many nutrients. I mean really rain is close to being distilled water!!!!!!

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post #14 of 20 Old 08-02-2008
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An easy additional supply can be trapped from the relatively large surface are of the mast. Cut a rounded edge from the rim of a large plastic funnel so that it fits against the mast. On each side of the cut-out a bungee cord can attach to secure the funnel to the mast. Just above this funnel wrap a piece of hose around the mast with a bungee through the center of the hose securing it tightly to the mast. Leave the break where the hose ends meet above the funnel. This apparatus is easily stored; easy to keep clean; and the effluent from the funnel can be lead to any container. You may need to attach the device above your sail cover if it wraps around the mast. 'take care and joy, Aythya crew
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post #15 of 20 Old 08-03-2008 Thread Starter
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Thanks all.. It - I'd never thought of using the mast... It may be good to have 3 different setups. I like the idea of the sail to catch water (especially if you are under sail at the time).. The mast catcher would be easy to setup and rig, even in rain (although since we do have a sail cover, it's quite high to reach to set and unset..).. And finally some kind of awning that will double as a rain catcher. We do have a hard top, but I don't think it is sloped in a way that will accommodate easy rain catching.

Thanks SO MUCH all, for the tips.

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post #16 of 20 Old 05-17-2009 Thread Starter
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OK, So I might well have spent 6 months procrastinating, but eventually I did make my own water catcher... I posted details on my web site http://www.sv-footprint.com/projects/WaterCatcher.html but basically it is just a rectangle that fits in a good place on my particular boat.

Thanks again for all the help.

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post #17 of 20 Old 05-17-2009
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Just read your water catcher account and then saw this entry!

Looks great and perfect for the task.

You continue to inspire me!
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post #18 of 20 Old 05-17-2009 Thread Starter
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Blushing - thank you Mrs. Chuckles :-)

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post #19 of 20 Old 05-18-2009
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newpig.com

Is a firm that makes spill kits (long socks full of absorbant material, pads etc.) They also make leak diverters. Plastic tarp funnels with hose atachment for collecting water from roof leaks or piping leaks up in the ceilings of factories. Common one is about 4ftx4ft.
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post #20 of 20 Old 05-18-2009
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Not on this planet... most rain is caused when moisture condenses around small particulates in the air... that would tend to indicated to me, that the rain has a fair bit of particulate matter in it. This doesn't even address issues like chemical pollutants, like sulphur dioxide, one of the primary components of acid rain, volcanic ash, airborne dust from drought stricken areas or a million other sources of pollution. Airborne pollution can travel long distances, so the water from rainstorms over the open ocean isn't much better than that near coastal areas. Go ahead, get a bucket and catch some rainwater in, and cover it and leave it sitting in the sun for a week. It won't be the "clean" water you think it is after that time is my guess. Plenty of pollen, microbes, mold spores, etc in that rain water.
What you say about rainwater is true but how do you think it compares to water at many foreign and some domestic marinas?

"When in command, command." -- Admiral Nimitz

Difference between a power boater and a sailor out on the water: A power boater is going some place special, a sailor is already there.

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