I have a couple of buddies who firmly embody the idea that "you can lead a horse to water...". We all got pools at about the same time but I had found TFP during the construction phase and quickly told the builder to switch from a Frog system to a SWCG. Both of my buddies stuck with the Frog. They are tired of paying the money for the refill chlorine packs but are completely unwilling to switch to BBB or to another method.
What they want to do is simply re-fill the frog chlorine packs with pucks and just use the frog as an in-line chlorinator. They are discussing on what sort of pucks to put in... one insists that there are "slow release chlorine" pucks v.s. ones that dissolve faster. He's concerned that the faster dissolving pucks will cause problems when the pump isn't running and it creates a strong acid solution.
From what I understand, the only 2 types of pucks are either TriChlor or DiChlor. I know they both have CYA and I'm under the impression that it's the CYA that enable the slow dissolving. I heard somewhere that TriChlor has a higher chlorine content (which I'm assuming must mean a lower CYA content) so DiChlor would actually be the slower dissolving puck. Is that right?
I've explained to them the hazards of increasing CYA yet they just don't seem concerned... they seem content with draining and refilling their pools every couple of years and dumping in bags of shock regularly.
All of our pools are less than a year old so they haven't had any significant issues yet, but I'm going to have a hard time containing my 'I TOLD YOU SO!' after theirs turn green some fine summer day and I'm still swimming in a sparkling blue pool. In the mean time, I'd like to at least give them some correct information on the pucks. Anybody care to enlighten me?