How did you measure the CYA at 10? I think the kit I have only goes to about 20 ppm or so.
How did you measure the CYA at 10? I think the kit I have only goes to about 20 ppm or so.
~18K gal IG Gunite -- 1-HP Pentair Whisper Flo with new 2-speed motor. Intermatic T1000 Dual Speed Timer -- Tagelus 60D sand filter
Hayward SWCG (up to 40K gal.) -- Polaris 280 and booster pump -- Rainbow (now Pentair) in-line chlorine Feeder.
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