Will preface by saying, I am just finishing a multi-day shock process to clear pool of algae due to some neglect on my part through the winter. Pool is sparkling clean now with FC loss around 1ppm for past 2 nights when performing the nightly loss test. Thank goodness for TFP. Thought I'd never get it all gone. Also added 50ppm borates to help maintenance.
A couple relevant details before the subject questions. Last year, we opened a 25,000 gallon plaster pool with natural sandstone coping and decorative rock waterfall, 2.5 Jandy VSP, Del Ozone Eclipse 4 Ozonator (50k gal "primary"), Pentair 320 Chlorinator (takes about 8 tabs) which is currently configured to feed water from the bottom. The pool builder recommended the in-line chlorinator and ozonator (wasn't my idea). I attached pictures of the Chlorinator and Ozonator to the post.
In non-BBB operation (e.g. relying on the 320 Chlorinator) I have a hard time keeping enough residual chlorine in the pool. Last summer, a typical measurement was around 1ppm (clearly it vacillates day-to-day, but this is a rough moving average). I thought the added daily ozone would help, but clearly I was mistaken (hence the algae mess I've fought over the past 3-4 days).
I am wondering a few things about my current sanitizing setup:
1) would having such a large ozonator attached to the sanitation system account for my inability to maintain FC (again, relying only on the 320)?
2) should the Pentair 320 Chlorinator be sufficient to maintain residual chlorine (with or without the Ozonator)?
3) is it worth - perhaps - considering selling the Del Ozone unit (less than 1 year old and should have a long life left)?
4) given I sometimes travel for days at a time, would complimenting (or replacing) the Ozonator/Pentair 320 with a SWG make sense for maintenance purposes? Also in light of natural rock and potential corrosive affects?
I realize I'm fishing with a net here and know this post covers a lot of ground in terms of potential responses. I guess I am more looking for opinions on what to do - if anything? Would you tweak, amend, overhaul this setup in favor of something else? And assuming I can't be around 100% of the time and reliably perform BBB method?
Any suggestions would be helpful.