#226277 - 06/21/11 03:08 AM
Re: OT: Irrigation System Help: Blast's setup.
[Re: dweste]
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INTERCEPTOR
Carpal Tunnel
Registered: 07/15/02
Posts: 3760
Loc: TX
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What is the purpose of the pre-flush other then perhaps clearing debris? My two cents: typically the first water washed / flushed from a catchment system / roof is loaded with settled dust, insects, bird poop, miscellaneaous organic material, and pollution particles that you do not want to drink. Rather than overburden and possibly clog a filtration system with the initial dirty water load, you let it drain or flush away for a while before the presumably cleaner water is captured. Exactly. It reduces the effort of purification later on. -Blast
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#226290 - 06/21/11 10:25 AM
Re: OT: Irrigation System Help: Blast's setup.
[Re: Blast]
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Veteran
Registered: 12/14/09
Posts: 1419
Loc: Nothern Ontario
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What is the purpose of the pre-flush other then perhaps clearing debris? My two cents: typically the first water washed / flushed from a catchment system / roof is loaded with settled dust, insects, bird poop, miscellaneaous organic material, and pollution particles that you do not want to drink. Rather than overburden and possibly clog a filtration system with the initial dirty water load, you let it drain or flush away for a while before the presumably cleaner water is captured. Exactly. It reduces the effort of purification later on. -Blast Ok, I had thought the purpose of the water barrels would be for lawn, garden watering etc. I did not think that the water in the barrels would be for drinking. My main concern would be the leaching of the chemicals in the roofing materials such as the petro-chemicals used in most asphalt shingles. How would you filter this out and make the water safer for drinking?
_________________________
Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
John Lubbock
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#226314 - 06/21/11 03:06 PM
Re: OT: Irrigation System Help: Blast's setup.
[Re: Teslinhiker]
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INTERCEPTOR
Carpal Tunnel
Registered: 07/15/02
Posts: 3760
Loc: TX
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What is the purpose of the pre-flush other then perhaps clearing debris? My two cents: typically the first water washed / flushed from a catchment system / roof is loaded with settled dust, insects, bird poop, miscellaneaous organic material, and pollution particles that you do not want to drink. Rather than overburden and possibly clog a filtration system with the initial dirty water load, you let it drain or flush away for a while before the presumably cleaner water is captured. Exactly. It reduces the effort of purification later on. -Blast Ok, I had thought the purpose of the water barrels would be for lawn, garden watering etc. I did not think that the water in the barrels would be for drinking. My main concern would be the leaching of the chemicals in the roofing materials such as the petro-chemicals used in most asphalt shingles. How would you filter this out and make the water safer for drinking? The water is mainly for the plants and flushing toilets if needed. I have a Big Berkey water filter system that will supposedly take out most chemicals. I also have the ability to distill water. -Blast
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#226535 - 06/24/11 01:47 AM
Re: OT: Irrigation System Help: Blast's setup.
[Re: MartinFocazio]
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Old Hand
Registered: 03/24/06
Posts: 900
Loc: NW NJ
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For those in range of the Lehigh Valley in PA, the water authority has been giving away free plastic barrels for rainwater collection. I just missed out on the last round but they said they'll get another batch to distribute when they have enough people on the waiting list. http://lcawaterworks.com/home/2011/06/more-rain-barrels-available-reserve-yours-today/
_________________________
- Tom S.
"Never trust and engineer who doesn't carry a pocketknife."
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#226538 - 06/24/11 02:34 AM
Re: OT: Irrigation System Help: Blast's setup.
[Re: MartinFocazio]
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Pooh-Bah
Registered: 02/16/08
Posts: 2463
Loc: Central California
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The preflush, for me, is to get the small crud out of the system to reduce the need to clean the foot valve, that's all. .... The use of my system is to water the garden. Perhaps your area is different from the Central Valley of California, in which winds bring: lead and other nasties from vehicle engine exhaust, chemicals from agriculture, and smog particles of who-knows-what from the big cities upwind. I would not want to incorporate any more of this stuff into what I eat than I have to.
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