Say you just started working at a pool store a couple of weeks ago, have mostly exhausted the usefulness of their training materials, and now you've just surfed troublefreepool.com's forums for six hours.
In this alternate universe, you don't have access to 12% liquid chlorine or the grocery store bleach. You have 73% cal hypo powder shock, dichlor shock, a non-chlorine oxidizer, and trichlor tablets. Also about 10% of your customers have SWGs but the vast majority use tablets and either floating chlorinators or plumbed-in ones.
Also, your chlorine test only tests to 5 ppm and bleaches out above 10ppm.
What would you do to make sure that the poor souls in this universe have (mostly) trouble free pools without losing your job? What numbers and maintenance procedures would you recommend? The main problems are constantly rising CYA levels and the fact that your non-CYA chlorine (the cal-hypo) is concentrated in such a way that it is dangerous for vinyl liners, which most of your customers have. Blegh.
Any ideas would be greatly appreciated. My brain is melted so I am going to go to sleep and have nightmares about algae infestations combined with 200+ ppm CYA.