Is is alright to use the borax and baking soda, but still use my chlorine feeder? I don't know if I'm ready to give that up, its just too convenient. I find that my CYA level stays at around 40 all the time.
eplacing enough water through backwash, splash out and evaporation to keep CYA steady
There is simply no way that CYA can remain constant when using a trichlor tablet feeder. CYA might go up slowly enough that you can live with it for quite some time but CYA will go up.
In any case none of that has anything to do with borax and baking soda. Both of them are fine to use with any source of chlorine.
IkeRay said:each tablet pretty much adds 1ppm CH or CYA per.