Quote:
Originally Posted by notmytarga
I have a six year old gunite 38,000 gal pebblesheen pool. During the off season I ran the filter 3 hours and the cleaner (JetVac- I would prefer a Letro/Pentaire Legend) 30 min. In the warmer months I have increased the filter time to 6 hours and the cleaner to 45 min. I have fought a troublesome algae problem which was not a problem the first two seasons.
I added an inline clorinator several years ago. You add the 3 inch tablets and adjust a dial to maintain chlorine levels. Shock occasionally to oxidize chloraminies - (look it up!) Only problem with this is the chlorine dispersal is intermittent.
I am going to run higher chlorine levels (2 ppm) rather than the 0.5 ppm Nature2 system and skip that $120 cartridge. I will pay my teenagers to brush 2x/week. Another no increased cost change is to use TWO Three hour filter periods to circulate the water more frequently. This will slow those late afternoon algae blooms.
Have a swell swim season!
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Have you checked the phosphate levels in the pool? This is the food source for the algae. Your commment that the algae was not present for the first two years leads me to believe you may have a phosphate build up. The other thing is that your adding chlorine is another indicator, increases in CL and unstable PH are also indicators.