Late last week and over the weekend I added salt to my pool in preparation for putting in a SWG (PoolPilot Digital). I tested the pool initially with test strips and used the pool calculator to determine how much salt I'd need. It came out to about 10 40# bags. I dumped four in, waited a day and tested again. I then put in another five and waited two days and tested again with a result of around 2800 to 2900 ppm. I rested again with the same results on Tuesday. I figured that I'd wait to see what the SWG said before adding anymore salt. I installed the SWG last night and started it up. The salt reading was 3800 ppm last night and this morning after running it all night. Is it unusual to see that much of a discrepancy between the test strip and the SWG? We can taste the salt so I'm leaning towards the higher number being correct. Is it worth pumping water at this point or should I just not worry about it since I'll be closing the pool and lowering the water in about 2 to 3 months?
Some other number:
25,000 gallon plaster pool
Ca Hardness 260
I'm bumping the CYA up, but obviously don't want to add stabilizer if I'm going to exchange water. I'm also working on knocking my TA down a bit, by lowering the pH.