Sorry post is so long but really appreciate any suggestions.
I have had a pool for about 20 years and always just used the pucks in a floater. Never really a problem. Then a couple of years ago seemed to always get a algae problem.
Received a lot of great advice here and bought the Taylor K2006 kit. Seemed most of my problem was with a high cya from the puck and so was not getting high enough to shock.
After last year I thought I had it under control and understood thing a little better.
This year water has been very clear so I was only keeping up with the FC and PH since it was clear.
Then after a few storms it was clear needed to be vacuumed. Maybe a total of a cup of dirt spread around the bottom. Wife just brushed it and it made it a cloudy. But always before it would clear up the next day.
Did a test with the Taylor kit. Shocked the pool and run pump 24 hrs instead of 8 hours a day. Also change my pump speed from Ĺ hp to the 1 hp on this new 2-speed pump.
Been a couple of days and just a little better. Below is the results BEFORE I shocked with bleach using pool calculator.
CC = 0
PH = 7.8
TA = 90
CH = 70
CYA = 100
Now I have been using a combination of 1 puck every 2 weeks and they rest bleach. With limited use of the pucks I thought would not get the CYA too high, but of course it is. End of last year I had it down to CYA 60.
But this is what I really donít understand. Used only the pucks for years with no problem. About 2 a weeks but never tested my CYA.
My next-door neighbor has the same size AG pool and his stays very clear with none of the problems the past few years. He uses same pucks and just fills his floater once a month. So 4 pucks and twice as much as I use both it really stay clear. Only other difference is he has a 150 lb sand filter with a one HP pump on our 18 AG pools. I have a 20 year old 100 lb sand filter and have been running new pump on low speed.
So my questions.
I guess my problem again is high CYA?
But why not ever my neighbors and could I have some other reoccurring problem?
Did test a sample of his water and his CYA was 100 also and could not even get a reading for FC. He said he was due to put in more tablets. Could not believe it, and his was clear.
What do full service pool service companies use if not pucks or do they visit each day?
I am gone a week at a time sometimes.
Should I replace my 20 year old MFM17 Jacuzzi brand sand filter?
4 years ago I took it all apart to inspect and everything looked great. And this one just fits under the deck area and most I have seen are taller so would be a little problem.
Not sure if it could be a filter problem. Water just cloudy and not really green like last years problem.
Thanks again for any advice.