Just installed my AutoPilot Digital SC-60 a few weeks ago and opened the pool this past Saturday. Before adding any salt, the Pool Pilot showed a salt reading of 1800ppm. I thought that was high, so I took a sample to Leslie's and they gave a reading of 1300. I added 280 lbs of salt Sunday, and the SWG was happy and reading 3000 ppm. Yesterday I took another sample to Leslie's and got the below numbers:
CYA: 50 (I have some CYA soaking in a sock right now)
Salt: 1200 (actually lower than Saturday's reading, after I added 280 lbs of salt)
I took a different sample to another local pool place that uses the BioGuard computer analysis and got similar numbers; salt was 1600. Up to this point I've been using liquid chlorine until the numbers are close to where they should be before turning on the SWG. Water temp is around 60. I did order my TF-100 and the Taylor K-1766 kits yesterday and I'm looking forward to taking my own readings, but I do have some questions.
1) I know people have said before if the SWG is happy with the salt content, don't worry too much about it, but that seems like a big discrepancy. I'm anxious to see what the K-1766 reads. Is it ok to turn on my SWG now, or should I wait until a test with the K-1766?
2) Does water temp and/or phosphate level have any impact on the Pool Pilot salt reading? I wouldn't think so, but the guy at Leslie's implied that it would.
First year using the SWG, so I'm sure I'll have many more questions. But I'm excited to be getting my own testing kit and not have to make the dreaded trip to the pool store and have them tell me how badly I need to raise my calcium hardness.