high cl, algae???

Algae problems in swimming pool water.
Green (cloudy) water or slimy pool walls.
Black algae. Mustard algae. Pink or white pool mold.
pete
Pool Newbie
Pool Newbie
Posts: 1
Joined: Sun 01 Oct, 2006 08:44

high cl, algae???

Postby pete » Sun 01 Oct, 2006 08:58

I have a 25,000 gallon gunite pool. My cl level is off the chart^^^. My ph level is @ 7.8. The problem is I still have a major algae problem. Please help.


Demons1964
Pool Care Proficient
Pool Care Proficient
Posts: 39
Joined: Tue 01 Aug, 2006 19:32
Location: Australia

Postby Demons1964 » Sun 01 Oct, 2006 19:50

Is it free chlorine or combined chlorine you're measuring? If it is off the charts, you can dilute your sample water by mixing it 50/50 with distilled water, performing the test and doubling the reading. Or dilute it by a factor of 3 and triple the result, you get the idea.

Rising pH is the result of the chlorine fighting the algae. Suggest you bring it down to 7.2 (and no swimming!!) temporarily as chlorine is very ineffective at high pH levels.

As for the cause of your algal outbreak, what's your stabilizer (aka cyanuric acid) reading?

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