Prevents degradation of spa surfaces and protects your spa equipment to ensure years of relaxation. Easy-to-use concentrate that increases calcium hardness.
1. Test the calcium hardness of the water. 2. Add 1 tbsp. per 100 gallons (raises it 25 ppm) to the spa water with the spa pumps on. 3. Check spa water and adjust if needed in 30 minutes.
For maintenance, it is necessary to keep your spas calcium hardness level 200 to 300 ppm reading.
*It is important to not pre-dissolve the increaser and to measure it out carefully.
