I'm a new member and hoping for some help, I don"t know where to turn at this point. I have a 1 year old (second season), 24000 Gal., vinyl liner salt water pool (Hayward Goldline SWG), cartridge filter in the Boston area. In the last two weeks of experiences, I feel that pool chemistry has to be the most inexact science there is. Here's why-
Opened two weeks ago, clear water, proper water level, some debris, Leslie's tests show among other things low salt, 300 phosphates reading, no chlorine or CYA. Leslie's says because of the cartridge filter, no powered conditioner because will clog cartridges, liquid only (Natural Chemistry Instant Conditioner- $38/bottle w tax). They recommend two bottles of liquid shock, 3 gals instant conditioner, add salt, and 5 oz SeaKlear. I add two bottles shock, 3 Gals. CYA/conditioner, 5 oz sea-Klear phosphate remover, and salt.
Three days later return to Leslies, salt ok (3400), no chlorine, CYA at 30, phosphates good, they happily sell me 5 more gals of instant conditioner and one pouch of granular shock (Chlor-Brite). I add.
Two days later return to Leslies, still no chlorine, still 30 CYA, they say need more CYA and the SWG must be broken, advise me to call Hayward warranty for service call on salt cell. I leave angry and dumbfounded. I call Hayward, they say CYA must be at 60-80 ppm (80 is ideal) for their salt cell to make adequate salt for pool. I inspect/clean cell, looks fine, diagnostic tests show it producing chlorine ok.
I immediately go to another Leslies nearby with another sample for giggles. Totally different results, but still suggesting more instant conditioner. I then call instant conditioner maker Natural Chemistry, very courteous, say that the CYA tests at Leslies are wrong, their calculations have me over 100, say do not add more. I buy my own test kit, no chlorine, CYA over 100.
I'm done with Leslie's, I go to Pool and Patio yesterday for a retest, no chlorine, well over 100 CYA. They suggest I have a chlorine block problem and -
lower-replace 1/3 pool water (doing it now) to bring CYA below 100
4 - 1 lb pouches cal hypo shock
retest chlorine tommorrow after 24 hrs., if still low or none, double it, add 8 pouches shock, test again after 24 hrs. If still low use 16 pouches of shock until I can break the chlorine block.
I just hung up with TF test kit people, very nice folks, I ordered my own test kit, TF-100. They strongly recommended your sight, so here I am. I sure would appreciate some good advice folks, much appreciated. Just don't know where to go at this point.
Boston South Shore