Total Hardness

Total hardness and calcium hardness in pool water.
Scale, calcium buildup, hard water and scaling problems.
Pool Care Proficient
Pool Care Proficient
Posts: 37
Joined: Mon 06 Jun, 2005 07:21
Location: Turkish Republic of Northern Cyprus

Total Hardness

Postby vaughanwilliams » Wed 19 Oct, 2005 12:47

I have just been given a TH kit but the scale is in "degrees Clark".
How do I convert this to PPM?


Vaughan Williams
Technical Director
Octopus Pools

Water hardness

Postby Hardness » Tue 27 Dec, 2005 08:48

To convert degrees Clark to ppm calcium carbonate multiply by 14.28

To get ppm calcium multiply by 5.71

We usually use the value for calcium carbonate in pool water balance equations.

Return to “Hard Pool Water & Scale”

Who is online at the Pool Help Forum

Users browsing this forum: No registered users and 1 guest