cykoed
Koi Lover
Apr 10, 2007, 1:33 PM
Post #2 of 3
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Re: [Carpa Diem] Harvesting Rain Water For Koi Pond Use
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jeff,
the guttering on the roof of my house collects water and channels this directly into my pond without treatment. whilst this can bring some settled pollutants and debris with the first wash, i've had no issues with the quality of the water especially under heavy rain. the only times when it can be a concern, is with light showers after many days of no rain when settled pollutants and debris can be higher than normal. haze and other environmental problems can make matters worse. but note that any debris coming down is not noticeable ie i've not had an visible problems before. if you're worried, than i suggest installing a gate/ valve so that you have the choice of flushing through the first 5-10mins of water out into the garden, before redirecting to the pond. i've only had to supplement with water from the taps once (but that's because i stupidly left an extraction pump on and forget to shut it, causing the water level to drop by a foot).
the piping from the roof would have to be of quite a large diameter, otherwise with the deluges that we get in malaysia, the volume of water is incredible, and i can see the overflow pipes struggling to cope. and with the overflow pipes, you would need to ensure that it can match the volume inflows. the good thing is that with regular rain, there's regular cycling of the water, and after heavy rains the water is very clear. there may be some rebalancing of the water parameters, but again i've found no problems to-date.
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