Why

• Raises Calcium Hardness (CH)
• Use when CH is less than 100 ppm to return to effective range of 100 – 200 ppm
• Low CH causes;
  • Etching of plaster, grout
  • Increased overall corrosion of surfaces - staining
  • Increased risk of problems and major repair costs
• Highest grade mineral available
  • Clean, granular, ‘prill’ form
  • Dissolves quickly and fully – even in hot water
  • Lowest impurity level available
  • Alkaline – pH 8 - 9 in solution

When

• Apply when needed to maintain CH between 100 – 200 ppm
• Always test with fresh fill and monthly thereafter

How Much

• To raise CH:

o  10 g per 1,000 L raises CH 10 ppm

• 1 capful = 10 grams (approx.)

How

• Always adjust CH after TA and pH
• Operate pump with air off
• Divide total amount of Balance TH+ into 3 equal applications
• Apply 1 application every 3 hours by sprinkling slowly over water surface – do not predissolve
• Circulate for 1 – 2 hours

WHAT IS CALCIUM HARDNESS'

What is CH

• The measure of dissolved calcium present in the water
• Total Hardness is the measure of calcium and magnesium
• Proper hot tub range: 100 – 200 ppm
• If low, raise with Balance TH+
• If high, control with Stain & Scale 1 and 2
• Balance initially at fresh fill
• Check monthly and adjust/treat as needed

Why Is It Important

• In hot tub water, a balanced calcium hardness does the following:
  • Helps protect surfaces from corrosion, staining
  • Helps protect surfaces from scale formation
  • Helps provide clearer water
  • Fewer problems / easier maintenance

Why Does CH Change

• Top up water can raise or lower CH
• Otherwise, it shouldn’t shift much once balanced
• Product additions don’t generally have an effect on CH

Problems Associated with CH

• When low – soft water
  • Etched plaster, grout
  • Increased corrosiveness
  • Possible staining
• When high – scale forming
  • Scale forms more readily

❧ Heater, therapy jets

❧ Remove with Stain & Scale 1

❧ Prevent with Stain & Scale 2

• Cloudy water
• Hard water stains