Rendezvous Liquid Calcium Hardness Up

Liquid Calcium Hardness Up raises calcium levels to help reduce foam and protect the spa from harmful corrosion from soft water or low calcium hardness. 

Features:

• Easy-to-use liquid product
• Prevents corrosion of plumbing and equipment

Applications:
Normal:
1. Determine amount to be added by using a hardness test kit. 

2. Pour proper amount into spa or hot tub with equipment turned on.

3. Run filter for 1-2 hours.

4. Water may be retested in 20 minutes. 

Sizes:
32 oz.

Tips:
Low hardness will etch plaster and corrode equipment.

Compatible With:
Chlorine, bromine, ozone and mineral purification systems.