We've had a ton of rain lately and I've had to drain a lot of water from the pool. Finally have temps high enough for the SWCG, but now it's saying low salt. The Hayward T15 says I'm at 2200 ppm, but a test strip (from the TFP ordering site) reads 1700... That's quite a bit of a difference. Which should I go with to decide how much salt to add? I'm guessing I'll use the higher number so I don't overshoot when calculating how much to add, but I'd like to know which one is more accurate.
Thanks
Thanks