We decided to do away with the SWG after only 2 years of use it broke. I'm waiting on the test kit now so I can be sure to SLAM the pool correctly. I've been scouting out bleach (liquid chlorine) while I wait. Definitely feel like liquid chlorine will be my best bet. Have found 10% gallons for $3.33 nearby. Just a bit more in cost than Walmart bleach ($2.87 here) but looking at posts here, will need less.
Before we went with the SWG we had problems with the CA levels in the pool. Pool store had us spending $$$$$ for additives and then things that would supposedly remove the CA. Having said that, I definately would feel more comfortable using daily bleach to keep up the chlorine levels verses the tablets. Now saying that, if my CYA levels are low, I will use tablets o pull that up.
I've ordered the Taylor K2006 kit which I believe has everything I need to test while slamming and check the CYA. So as of now, my green swamp is just sitting idly by growing daily. I can't really proceed until I can test properly.