I'm at my wits end. Installed a swimpure plus system the end of May. My pool chemistry has remained within spec: pH 7.4 - 7.6, alk 90-100, CYA 70-90, Ca 180-260, no phosphates, no Fe or Cu, Nitrates 1.0 ppm Nitrites 0, salt level 3000-3100. Run time 9 hrs. 15000 cell - pool is 7500 gal run at 95% and my chlorine level runs between 0.0 to 1.0 usually 0.5. Not sure if the higher levels are due to the residual of shocking (do get higher values after the shock). I've taken water samples at the closest return to the system and in the pool. Chlorine levels are the same. I use test strips and a Taylor DPD kit. Have the water cross checked with the local Leslies. Their results are the same as mine. Replaced the cell 2 weeks ago still no chlorine. I called Hayward and talked with a tech--everything on the diagnostics indicate I should be making gobs of Cl.
Last hayward tech sez should run the cell for 12 hours-I figure for a cell rated at 2x the pool size I should be OK.
Do have repeating problems with a water mold--then I shock as to remove/kill.
Any ideas? (Gave away my in-line tablet chlorinator-mistake!!!).