Calcium tests vinyl pool

[Northern cannonball]

Hey folks,
I have a taylor 2006 test kit and a vinyl liner. For 4 pool seasons my calcium readings are always well within the recommended ranges. I've never had to once manage the calcium levels in the pool. So I am curious, is it even worth bothering to check calcium levels? I don't mind spending the $ on the reagents if there is a benefit.
Thanks

 

[PoolStored]

Gas heaters like a ch of 200.

 

[ajw22]

Your JXI gas heater needs at least 200 ppm of CH.

What is the CH of your fill water?

If your CH is good at the start of the season and your fill water has CH, then you are probably good for the season.

If your fill water has low CH and you get a lot of rain then your CH may get low.

My fill water used to have high CH, so I rarely tested it. Then, one time, I did and was surprised to find it low. I then tested my fill water and discovered it now has a CH of 50. Somewhere along the way, my water company changed things and started supplying low CH water.

You need to test CH once in a while to ensure nothing has changed and to protect your gas heater.

 

[PoolStored]

I read the HP as heat pump, didn’t read further. Corrected.