So, our pool has been completed almost 2 months ago now. I was able to get in in about 3 times up until about 3 weeks ago. Water temp currently has been holding between 73-76, a wee bit too chilly for me to brave a full body swim. Walking around the baja shelf up to knee depth is not so bad. Air temps during the day have been upper 80s/low 90s with lows in the upper 50s.
So, I have been testing my levels every day, and up until about a month ago, I was testing everything daily. I am now down to testing only the pH, FC/CC, and TA daily.
I had initially been using the tricolor tablets in a floater but removed them about a week ago as I think they were causing my pH to keep rising after adding muratic acid nightly. Since then I have been able to bring my pH pretty well under control as it has not topped 7.5 all week when most of the time it was at around 7-6-7.8.
My chlorine levels have dropped off as well but I have been solely relying on bleach when needed. I have also noticed from removing the tablets that my TA has been dropping at a steady pace, from 100 to 70 in the past week to 10 days.
I have had my water pretty much completely in balance since about 2 weeks in to the start up with the SI never outside of +/- 0.3. The pool still sparkles all the time.
My numbers tonight look like this:
pH = 7.3
FC = 3.5
CC = 0
TA = 70
CYA = 80
CH = 380
Pool temp = 74˚
This is the first time in over 2 weeks I have not had to add any MA. I added bleach to counter the high CYA and have been trying to keep it between 4-6. I am losing about 0.5 to 1.0 FC a day. I also added about 2 pounds of baking soda to bump up the TA closer to 90. The CH on the pool has always been high and seems to fluctuate between the 300-400 range. They will be partially draining the pool next month to reset the mosaic tiles on the first step as they were not put in level. I am hoping that little bit of water (around 10% is my guess) replacement will bring things back down closer to 350.
The one thing that has been confusing me is the the CYA levels and why have been climbing? It was another reason I decided to do away with the tricolor tablets in the floater. Right after the pool was in the CYA was between 40-50 on a regular basis. Is a CYA level of 80 anything to worry about? I know most say between 30-50 is preferred but can easily be fine up to 150 as long as you bring up the FC levels. Is this the case?
As we really don't 'close' pools down out here in the desert, besides routine testing of pH and FC, is there anything else I need to worry about as there will be no swimming until things heat up next spring out here. I assume the plaster finish is going to continue to fight me for a while in keeping things balanced and in check?
One last question might be brushing the pool. Should this be done on a regular basis or mainly only right after a storm just to help clean up dust and debris?
Okay, off to order some replacement pool chemicals, this daily testing has taken a toll on my stock!