I have a Hot Springs spa which has a spot in the filter cavity for a, AG Plus Silver ionizer. How much difference does this product make in the overall condition of the spa? I find that I forget about it a lot since I don't see it unless I'm cleaning the filters and I don't always have time to run to the store and buy one.
I also have no clue how to judge how much life is left on the unit... I've heard people mention Spa Frog (
http://www.kingtechnology.com/products/ ... pafrog.htm) and the 3rd product on that page looks like it might be a drop in replacement for the Silver cartridge. Does anyone have any comments on which is better or any other products (or if these really don't do much in reality)?
Thanks,
BlueSix