Rendézvous™ Spa Specialties™ Spa Increase is a liquid formula is designer to gently raises both pH and total alkalinity levels without pre-mixng.
When the pH value of water drops below 7.2 or total alkalinity drops below 80 parts per million (ppm) as determined by the use of a test kit, turn the air blower or filter system on and add 1 ounce of Rendézvous™ Spa Specialties™ Spa Increase water balancer to the water. Wait 60 minutes and then re-test the water. Repeat this procedure until the pH is in the proper range of 7.2 to 7.8 and the total alkalinity is in the range of 80 ppm to 120 ppm.
pH and total alkalinity should be tested and compared together
Chlorine, bromine, ozone, biguanide and mineral purification systems