First time using TF-100

[mknauss]

Herman - you live in Houston. It rains. The OP lives in Arizona. It does not rain. They will never have to add calcium to their pool water.

 

[lauramor]

I have a water softener also that fills my pool. I suggest you test monthly and monitor it. I have in the past had to add Calcium increaser if my CH test value dropped below 250ppm. It is something you want to add incrementally because too much CH is harder to correct. I try to keep my CH between 300 to 400 which works OK for my pool.

It is good to test your water softener occasionally to ensure all is functioning OK. I found my regen system broke and my CH spiked on my inside tap water. With a 10ml sample 1 drop is 25ppm so that is within boundaries of the test. I would suspect anything above 75ppm for your water softener.

Ok, I will keep test my CH and I will add calcium if it goes below 250ppm.

Our water softener was installed about 4 months ago, so hopefully it won't malfunction any time soon, but I will check occasionally. I got 25ppm for the soft water. It changed to blue after one drop. Thank you!!!

 

[lauramor]

Herman - you live in Houston. It rains. The OP lives in Arizona. It does not rain. They will never have to add calcium to their pool water.

Summer is monsoon season, so we do get some rain. The pool refill uses soft water (CH 25ppm), so it looks like I will need to add calcium at some point.

 

[mknauss]

Summer is monsoon season, so we do get some rain. The pool refill uses soft water (CH 25ppm), so it looks like I will need to add calcium at some point.

You will not have to add calcium. Even at 25 ppm, your CH will rise.

Rarely will a monsoon storm cause your pool to overflow.

 

[lauramor]

You will not have to add calcium. Even at 25 ppm, your CH will rise.

Rarely will a monsoon storm cause your pool to overflow.

Can you explain how CH will rise? Where will the calcium come from? Sorry, I am trying to understand. Thanks!

 

[mknauss]

When your pool water evaporates, it leaves the calcium behind. You then add water, even with only 25 ppm CH, and that adds calcium. It will not rise quickly, which is a good thing. But it will not go down, unless you remove pool water by draining and refill with the lower CH water.

 

[lauramor]

When your pool water evaporates, it leaves the calcium behind. You then add water, even with only 25 ppm CH, and that adds calcium. It will not rise quickly, which is a good thing. But it will not go down, unless you remove pool water by draining and refill with the lower CH water.

Thank you for the explanation! I had no idea the calcium stayed when water evaporates.

 

[Newdude]

I had no idea the calcium stayed when water evaporates.

CYA and salt too. Most places get some balance from the rain, but you get 9.4 inches a year, so you'll be mostly evaporation with next to no dillution. Every gallon of bleach or MA will add some salt and you'll have a 'salt pool' within a couple of seasons.

 

[lauramor]

CYA and salt too. Most places get some balance from the rain, but you get 9.4 inches a year, so you'll be mostly evaporation with next to no dillution. Every gallon of bleach or MA will add some salt and you'll have a 'salt pool' within a couple of seasons.

Thanks!