Hi and happy 2018 pool season. I'm in the Northeast and opened the pool a week and a half ago (I do a short pool season)
This is my second year following the TFP method. But I was hoping if some of the seasoned members could give me some ideas as to why I am using SO MUCH liquid chlorine during this SLAM? I purchased 12.5% "Super Shock" from Ocean State Job Lot. It was manufactured mid-May. I tested the chlorine content and it actually diminished a little. So the result is it is really approx. 10% chlorine.
1.) When removed the cover, the water was clear. The FC registered Zero. I vacuumed and have vacuumed since.
2.) The CYA was unfortunately high at 60 (I was duped to add CYA. A pool store did the CYA reagent/mix test, just like I would...but in hindsight I don't think they shaked the tube enough...so they said my CYA was low)
3.) But CYA is back down to approx. 40-45 (I removed water and refilled)
4.) The sand filter has been running 24/7. I backwash, rinse, etc. Sure it was greener backwash at first but has dissipated much.
5.) I've gone through TWENTY or so bottle of the 10% liquid chlorine. And it still isn't passing the overnight FC drop test!
The pool doesn't seem to be hiding algae anywhere. Things are clean.
So...any ideas?
AND RELATED >>>> And ideas to speed-up the SLAM process? Ex. Would it be worth it to "NUKE" the pool immediately, like if the recommended SLAM FC level is 20....you raise it to 30 or 40? Will that help speed the process? Just looking for some ideas.
Thanks as always!
This is my second year following the TFP method. But I was hoping if some of the seasoned members could give me some ideas as to why I am using SO MUCH liquid chlorine during this SLAM? I purchased 12.5% "Super Shock" from Ocean State Job Lot. It was manufactured mid-May. I tested the chlorine content and it actually diminished a little. So the result is it is really approx. 10% chlorine.
1.) When removed the cover, the water was clear. The FC registered Zero. I vacuumed and have vacuumed since.
2.) The CYA was unfortunately high at 60 (I was duped to add CYA. A pool store did the CYA reagent/mix test, just like I would...but in hindsight I don't think they shaked the tube enough...so they said my CYA was low)
3.) But CYA is back down to approx. 40-45 (I removed water and refilled)
4.) The sand filter has been running 24/7. I backwash, rinse, etc. Sure it was greener backwash at first but has dissipated much.
5.) I've gone through TWENTY or so bottle of the 10% liquid chlorine. And it still isn't passing the overnight FC drop test!
The pool doesn't seem to be hiding algae anywhere. Things are clean.
So...any ideas?
AND RELATED >>>> And ideas to speed-up the SLAM process? Ex. Would it be worth it to "NUKE" the pool immediately, like if the recommended SLAM FC level is 20....you raise it to 30 or 40? Will that help speed the process? Just looking for some ideas.
Thanks as always!
