Test results, where do I go?

[dldeuce]

My numbers from today are below. I've had this pool for about 10 months. I really need to drain the pool to bring down the cya, but Houston is charging me an arm and leg for water. I've been draining it down just before a rain, and slowly it's coming down after the previous owner dumping tons of tablet chlorine in it! I'm wondering what I should be targeting here for the upcoming hot Houston summer. Comments?

fc 7.5
ph 7.8
ta 60
ch 440
cya 90
csi .07
temp 80

 

[Texas Splash]

The link below is key. In that chart is also a link to the FC/CYA Levels. Yes, your CYA is a bit elevated, but it should degrade slightly each month by about 5 ppm or so. So I wouldn't go so far as to say you need to drain the pool. If you want to exchange a little water you could, or simply maintain a higher FC level as noted on that chart. So you have choices.

What Are My Ideal Pool Levels?

Use our tool to find ideal chemical levels for any swimming pool. Check TFP recommended levels on pH, free chlorine, cyanuric acid, and more.

www.troublefreepool.com

 

[dldeuce]

The link below is key. In that chart is also a link to the FC/CYA Levels. Yes, your CYA is a bit elevated, but it should degrade slightly each month by about 5 ppm or so. So I wouldn't go so far as to say you need to drain the pool. If you want to exchange a little water you could, or simply maintain a higher FC level as noted on that chart. So you have choices.

What Are My Ideal Pool Levels?

Use our tool to find ideal chemical levels for any swimming pool. Check TFP recommended levels on pH, free chlorine, cyanuric acid, and more.

www.troublefreepool.com

Yeah, the cya was much higher when I moved in, plus we've had a drought. So it's taken a long time to bring it down. I've been in the middle of the good ranges except for that. I suppose I was just wondering if there was any use to move any one parameter within that range. For example, alkalinity. I had a salt pool before, and I always had a rising Ph. I can't remember, but I thought someone recommended staying on the lower end of that range to help. The Ph in this pool rises too, but it doesn't take much acid to keep it down. I thought I read in my heater manual that the calcium hardness should be lower. I don't recall the target they recommended. I was just wondering if there are reasons to move within those recommended ranges, or really, it doesn't matter much if I stay balanced?

 

[duraleigh]

Anywhere within a TFP published range is acceptable. I would not move a parameter just to get into the middle of acceptable.

You will develop more and more control of your pool as you recognize it's tendencies and whether or not to change something.

 

[pjt]

Can you fill out your signature with your pool specs, equipment, how you're chlorinating, testing, etc.? It's very helpful to others.