Pool Water Hardness testing

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If you test your Pool Water for Calcium Hardness are you using a normal Total Hardness Test or a Calcium Hardness Test?

[Bagwain]

You really need to test for calcium hardnesa. Ideally (200 - 250 ppm) 

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1 hour ago, Bagwain said:

You really need to test for calcium hardnesa. Ideally (200 - 250 ppm) 

Any suggestion for a Calcium Test, preferably a digital Tester? For now I've found one Test Kit but this has a range up to 100 ppm only.

 

Not sure if below shown Hanna Tester HI758 will do, range 200-600ppm.

 

[Bagwain]

Unless it is a commercial pool don't sweat!

[sappersrest]

A digital test  for  total hardness is only  good so long as the machiine  remains calibrated . Are you worried it is to high, or low. if is to high the only way is dilution but the catch is it must be done with water that is low in total hardness.

If it is to low the best way is to use a calcium based  chlorine  produt such as calcium hypochlorite.

As as been previously stated unless it is causing major problems or you are a comercial pool best leave well alone as you will be chasing your tail for ever.

A good  test to get is aquatest 7 this does  test for  calcium hardness they are made by Hach who are also well known for medical test strips, a first class product but not cheap about $ 30  Au.

 

[sappersrest]