Thanks, Dave

Yes, in prior years I used liquid chlorine from the pool store and/or hth sock-it shock once a week and supplemented with pucks in the skimmer. I now understand the pucks aren't a good idea. pH unually needed to be adjusted only at the beginning of the season. Using strip testers ALK and CYA never appeared to be a problem. I guess I've just been lucky however algae has been a problem off and on over the years.

I added the first batch of 6 gallons chlorine last night. Will do full testing this evening and post results. Heavy rain here today in NJ. I may not have lost too much Cl to sunlight. Should I still add the second batch of 6 gallons?