DPM Spa Calcium Hardness Increaser - Calcium Hardness Increaser Hot Tub & Spa Hardness Increaser for Hot Tub - 2 Pounds - Hot Tub Hardness Increaser - Calcium Booster for Spa Hot Tub (4)

★★★★★ 4.8 66 reviews

$44.99
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$44.99
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Free shipping Free 30-day returns

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Product details

Management number 214843632 Release Date 2026/04/12 List Price $18.00 Model Number 214843632
Category

Protects Spa Equipment: Our calcium hardness increaser for hot tub prevents corrosion of metal fixtures and equipment caused by low calcium hardness levels. Increase your hardness levels with our calcium booster for spa hot tub. Prevents Surface Damage: Using our DPM hot tub calcium hardness increaser. Spa calcium booster helps avoid etching and damage to your spa’s interior surfaces. If your spa or hot tub has soft water, our spa calcium increaser will raise your calcium hardness level in your water. Ideal Calcium Levels: With our spa calcium hardness increaser or calcium booster for spa hot tub, it will effectively raise calcium hardness to the recommended range of 150–300 ppm. Versatile and Effective: When you use our DPM calcium increaser for hot tub and spas, your spa hardness and hot tub chemicals calcium hardness water will remain balanced and help keep your equipment protected. Easy to Use! (1) Test calcium hardness (ideal range: 100–350 ppm). (2) Pre-dissolve up to 3 tablespoons of calcium hardness increaser per 100 gallons in 1 gallon of water. (3) Add with the spa pump on high speed. (4) Run pump for 30 minutes, then retest water.

  • Protects Spa Equipment: Our calcium hardness increaser for hot tub prevents corrosion of metal fixtures and equipment caused by low calcium hardness levels. Increase your hardness levels with our calcium booster for spa hot tub.
  • Prevents Surface Damage: Using our DPM hot tub calcium hardness increaser. Spa calcium booster helps avoid etching and damage to your spa’s interior surfaces. If your spa or hot tub has soft water, our spa calcium increaser will raise your calcium hardness level in your water.
  • Ideal Calcium Levels: With our spa calcium hardness increaser or calcium booster for spa hot tub, it will effectively raise calcium hardness to the recommended range of 150–300 ppm.
  • Versatile and Effective: When you use our DPM calcium increaser for hot tub and spas, your spa hardness and hot tub chemicals calcium hardness water will remain balanced and help keep your equipment protected.
  • Easy to Use! (1) Test calcium hardness (ideal range: 100–350 ppm). (2) Pre-dissolve up to 3 tablespoons of calcium hardness increaser per 100 gallons in 1 gallon of water. (3) Add with the spa pump on high speed. (4) Run pump for 30 minutes, then retest water.
UPC 679529064697
Item Form Powder
Brand Name Discount Pool Mart
Unit Count 32.0 Ounce
Manufacturer Discount Pool Mart
Product Benefits Calcium Increaser, Maintains Clean Sanitized Water, Prevents Corrosion, Prevents Scales

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4.8 out of 5
★★★★★
66 ratings | 27 reviews
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