I just installed a SWG this year, the first of may. we added the recommended amount of salt, and within 48 hours the salt level was at 2400 where it remained until last weekend. so, from the first of may until the last week of July, all of my chemicals were perfect! Last week, the salt level had dropped to 2300, so it was not generating chlorine efficiently. I added 80 lb of salt, the following day the salt level was at 2100ppm, so I added 120 lbs. the following day the level was at 2700, and the system was generating chlorine. 4 days later, the salt level is down to 2000, once again, not generating chlorine. I plan to add more salt today, but from what I have read, adding salt like this seems unusual....what do you think?