Quote Originally Posted by waterbear View Post
Sort of defeats the purpose of having a SWCG doens't it?
Since I don't have an SWCG I don't "feel your pain"

Seriously, if you have to come up with an automated acid-feeding system perhaps just tri-chlor tabs are enough, certainly easy to set up and replenish. I presume the SWCG will produce less chlorine to compensate.
Of course, the Tri-Chlor will run your CYA levels up.