Check the listing for details. Alkalinity Increaser - Raise Pool Alkalinity In The Swim. Condition: New. Listed at 16.29 USD. h5 { color: #000; font-weight: 600; } In The Swim Alkalinity Increaser will help you raise Total Alkalinity in your pool or spa while keeping your pH levels the same. Alkalinity Increaser is 100% sodium bicarbonate in granular form and comes in bags and buckets that make for easy storage and usage. Great for your pool, spa, and hot tub, you can keep Total Alkalinity When alkalinity is too high, your water is equally unsafe and scales will begin to form on your pool and pool equipment. Granular alkalinity increaser can help by stabilizing the pool pH and ensuring that your pool is safe for swimming. More importantly, maintaining a balanced pH by effectively administering an alkalinity increaser also ensures that your pool water is refreshing and enjoyable on even the hottest summer Powered by Frooition Frooition | No-js Template | eBay design, eBay store design, eBay shop design, eBay template design, eBay listing design (ver:froo_no_js) This listing is currently undergoing maintenance, we apologise for any inconvenience caused.