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Swimming Pools Free and Total Chlorine

February 28th, 2011

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Looking online I’ve seen so much confusing and contradictory information regarding pools and their chlorine levels that I find myself here asking a somewhat common question. I apologize.

Background: My friends got a new house with a pool and we decided to try using the solar cover last week in order to prolong the time we could use the pool. We live in Arizona and there are still some warm days to come. Last night I walked outside and noticed a funny smell. It wasn’t the typically complained about “chlorine smell.” It smelled a bit like a wet dog; enough so that I was afraid to put my hand in the pool wondering what must have fallen in and died. A bit later it occurred to me that more than smelling like wet dog it smelled like a lake. I was alarmed immediately by that, thinking maybe there wasn’t enough chlorine to kill off algae, so I rushed to test it (using AquaCheck 5 strips). The results were quite a bit different than I expected.

Total Chlorine: 10ppm
Free Chlorine: 10ppm
Alkalinity: 100ppm
pH: 7.5ppm
Total Hardness: 500

Sadly, (a week or so) prior to putting the solar cover on, one of my friends had added quite a bit of stabilizer and chlorine. Having read about damage that can be caused to solar pool covers when exposed to high chlorine levels I removed the cover as soon as we noticed the problem. I’ve taken the chlorine out, added quite a bit of water and had the pool uncovered all day today with the filtration system on. The numbers I listed above are what the pool reads right now, though aside from the chlorine levels everything has dropped a bit in the last 24 hours.

I hate having the pool cover off, the temperature dropped very quickly. Looking around tonight I’ve seen everything from the typical warnings -not to swim until the chlorine levels are at 1.5-3ppm- to people saying as long as the total chlorine and free chlorine are in balance it’s safe to swim. Ours appear to be in balance, but still seem startling high.

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Filtration rate of water inside artificial lake

February 23rd, 2011

What is the filtration rate of water inside artificial lake ? I mean what is the period in which the whole water in the lake should be completely filtrated?

I know that the water in the swimming pools should have a complete filtration cycle in 4 or 6 hours. So what about artificial lake ?

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Cheap place to buy Intex 800gph Wet Set Water Filtration Filter Pump

February 10th, 2011