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Alk Increaser
product #3547

2 LB Alkalinity Increaser

by Leisure Time
List price: $15.99  
You save 25%


Spa Care Made Easy with Spa Chemicals from Leisure Time

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Product Details

2 LB Alkalinity Plus - Alkalinity Increaser

For owners of pools, spas and hot tubs, you'll quickly learn that total alkalinity (TA) is important to note and regulate. TA is a measure of how much of the alkaline substances are present in the water. Typically, the TA should remain in the range of 80 to 120. If your total alkalinity measures within this range, pH changes should remain stable and your water and tub or spa should operate at peak performance. If the total alkalinity is too low, then the marbelite and plaster walls will become etched, metals will corrode, and the walls and floor of your pool or spa will stain. The water may even turn green and your eyes will burn with use. The pH may rapidly drop and rise for what seems like no apparent reason. In instances like these, monitor your total alkalinity. Chances are, you are running at a deficiency. To raise the level of TA, use the sodium hydrogen carbonate Alkalinity Plus by Leisure Time. 


  • No waiting period to soak
  • Compatible with other spa and hot tub chemicals
  • Dissolves quickly without residue


  • 1oz. (2 tablespoons) / 500 Gallons until Alkalinity has reached 80-120ppm
  • Broadcast directly to spa water


Leisure Time

Size 5 Lbs

Contents Sodium Hydrogen Carbonate

Function + Alkalinity

Compatible With Spa Chemicals

Use Amount 2 Tablespoons/500 Gallons

Application Directly into Spa Water, Dissolves

UPC 785336304120  

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For online orders over $40 (before tax), shipping and handling is FREE. Orders that are under $40 will have a $5.99 shipping fee added. Most pool/spa supplies ship via Fed Ex and delivery times within the Continental U.S range from 2-5 days. All orders received before noon will ship that SAME DAY.
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