The main problem with the Frog system which I have is the it continually adds CYA (Stabalizer) to the pool. All the info on this site says the higher the CYA the higher levels of chlorine is needed to keep the water clean. I opened my pool this year with a CYA of a 100 and had to do a partial drain to lower it. Since I am still using the Frog system I am once again battling High CYA. Before coming to this site I did not know about high CYA levels, but I also never had any problems in 5 years (algae, pool turning cloudy).

Below listed is a website were I buy my mineral pack way under $100:


http://www.americasbestpoolsupply.co...CategoryID=210

Here is a link were I get my bac Pac Chlorine when you buy 12 it is about %13.32 a pac.

http://www.americasbestpoolsupply.co...=2&StartRow=13