Just had to post this. I have a new SwimPure Plus 15 that we installed in July of this year. It replaced an Aquarite, which lasted 9 seasons. I couldn't have asked for a better product, never had to fix anything and only last year cell started to fail. My salt was a little high so I emptied some water before starting the new SP Plus. Salt was around 3600- 3800 but unit kept on running so I didn't worry. I have since gotten it down to 3300 so its right on target now. My small problem is I have to run this unit at 60 % for 12 hrs and it barely keeps up at 10 FC. The Aquarite, when it was new I had to keep on 20% or shut it off, it produced so much chlorine. I called Hayward to ask how long the run was and why I had to keep a new unit on a high setting like this. The lady stated the SP Plus runs on a 3 hr. cycle. I didn't know this. So at 60 % my unit is running 108 minutes every 3 hrs. I think the old unit ran on a 90 min cycle. She also stated, and this is the hard part for me to get my head around, that nitrites and phosphates in the water would eat up the chlorine so I should test for that. I told her I thought this was bunk but she didn't take too kindly to that and informed me if they sent someone out from a pool repair store and my water chemistry showed high phosphates or any other water chemistry problem they wouldn't cover any problems. I just hung up, I cant believe this is true. Can someone chime in and tell me why a manufacturer of these salt generators would be passing along this wrong info to people. I told her I had my own test kit and with the help of this site ( which I didn't name) I knew my water was fine and I left it at that. This is a sad situation to me because other people that don't know any better are taking this info and running to the pooll store to get their water tested and we know how reliable this is. I don't know if I should take this up further with someone higher up or leave it alone as I am not a chemist so I just go by the info on here. I always thought phosphates were a load of bunk. Please advise. My water chemistry is FC 10, CC 0, TC 10, PH 7.5, TA 80, CYA 70, CH 150, Salt 3300. Thanks