{"product_id":"bioguard-balance-pak-300-7-lb","title":"BioGuard Balance Pak 300 - 7 lb","description":"\u003ch1 class=\"font-editorial font-bold first:mt-xs mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg leading-[1.5em] lg:text-xl\" id=\"bioguard-balance-pak-300---7-lb\"\u003eBioGuard Balance Pak 300 - 7 lb\u003c\/h1\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"calcium-hardness-increaser-for-protecting-pool-equ\"\u003eCalcium Hardness Increaser for Protecting Pool Equipment and Surfaces\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eBioGuard Balance Pak 300 is a calcium hardness increaser designed to raise low calcium hardness levels in swimming pool water. This 7 lb size is a practical option for correcting hardness levels and helping protect pool equipment, plaster, liners, and surfaces from damage caused by water that is too soft.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eWhen calcium hardness is too low, pool water can become aggressive and may contribute to corrosion, plaster etching, liner wrinkling, staining, and surface deterioration. BioGuard Balance Pak 300 helps restore calcium hardness to a healthier range, supporting better water balance and longer-lasting pool surfaces.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eIts quick-dissolving formula is designed for direct pool application, helping make calcium hardness adjustment easier as part of routine pool maintenance.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"key-benefits\"\u003eKey Benefits\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eRaises calcium hardness:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHelps correct low calcium hardness in swimming pool water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eQuick-dissolving formula:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDissolves faster with less cloudiness than similar products.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eHelps prevent corrosion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports protection of pool equipment and surfaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eProtects plaster and liners:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHelps prevent plaster etching and vinyl liner wrinkling caused by low calcium hardness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eImproves water balance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHelps maintain the right mineral balance for better chemical performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eDirect pool application:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eScatter directly over the water surface as directed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003e\u003cstrong\u003eConvenient 7 lb size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUseful for routine calcium hardness correction and seasonal balancing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"product-details\"\u003eProduct Details\u003c\/h2\u003e\n\u003cdiv class=\"group relative my-[1em]\"\u003e\n\u003cdiv class=\"sticky top-0 z-10 h-0\" aria-hidden=\"true\"\u003e\n\u003cdiv class=\"w-full overflow-hidden bg-raised border-x md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"w-full overflow-auto scrollbar-subtle rounded-lg border md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-raised\"\u003e\n\u003ctable class=\"[\u0026amp;_tr:last-child_td]:border-b-0 my-0 w-full table-auto border-separate border-spacing-0 text-sm font-sans rounded-lg [\u0026amp;_tr:last-child_td:first-child]:rounded-bl-lg [\u0026amp;_tr:last-child_td:last-child]:rounded-br-lg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"border-subtlest p-sm min-w-[48px] break-normal border-b text-left align-bottom border-r last:border-r-0 font-bold bg-subtle first:border-radius-tl-lg last:border-radius-tr-lg\"\u003eProduct Attribute\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"border-subtlest p-sm min-w-[48px] break-normal border-b text-left align-bottom border-r last:border-r-0 font-bold bg-subtle first:border-radius-tl-lg last:border-radius-tr-lg\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eBioGuard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eBioGuard Balance Pak 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eSize\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eUPC\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e017541661027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eCalcium hardness increaser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eActive Ingredient\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eCalcium chloride 97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePrimary Use\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eRaising calcium hardness in swimming pool water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eStandard Dosage\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e1 lb per 10,000 gallons raises calcium hardness by approximately 10 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eAlternate Dosage Reference\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e4 lb per 10,000 gallons raises calcium hardness by approximately 40 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eRecommended Calcium Hardness Range\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e175 to 275 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eApplication Method\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eScatter directly over pool water surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePre-Dissolving\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eDo not pre-dissolve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eProduct Code\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e23471BIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"compatibility-and-requirements\"\u003eCompatibility and Requirements\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eBioGuard Balance Pak 300 is designed for swimming pool water balancing when calcium hardness is low. It is especially important for plaster, concrete, and other pool surfaces that can be damaged by overly soft water, but proper calcium hardness also helps protect equipment and liners.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eBefore applying, test calcium hardness with a reliable test kit or professional water analysis. Add only the amount needed based on current test results, pool volume, and label directions. Do not pre-dissolve this product because heat can be generated when it contacts water.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"how-to-use\"\u003eHow to Use\u003c\/h2\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"test-calcium-hardness\"\u003eTest Calcium Hardness\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eTest pool water before treatment. Calcium hardness should generally be maintained in the recommended range, and product should be added only when testing shows calcium hardness is too low.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"apply-directly-to-pool-water\"\u003eApply Directly to Pool Water\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eScatter the required dose directly over the pool water surface. Do not pre-dissolve. Use a surface-compatible pool brush to move away any undissolved granules from pool surfaces.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"standard-dose\"\u003eStandard Dose\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eUse 1 lb per 10,000 gallons to raise calcium hardness by approximately 10 ppm. For a 40 ppm increase, use 4 lb per 10,000 gallons.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"retest-before-adding-more\"\u003eRetest Before Adding More\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eAllow the product to circulate and retest calcium hardness before making additional adjustments. Avoid overcorrection, as high calcium hardness can contribute to scaling.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"frequently-asked-questions\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"what-does-bioguard-balance-pak-300-do\"\u003eWhat does BioGuard Balance Pak 300 do?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eBioGuard Balance Pak 300 raises calcium hardness in swimming pool water. Proper calcium hardness helps protect pool equipment, plaster, liners, and surfaces.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"why-is-low-calcium-hardness-a-problem\"\u003eWhy is low calcium hardness a problem?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eLow calcium hardness can make water aggressive, which may contribute to corrosion, plaster etching, staining, surface distortion, and liner wrinkling.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"how-much-balance-pak-300-should-i-use\"\u003eHow much Balance Pak 300 should I use?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eA common dosage is 1 lb per 10,000 gallons to raise calcium hardness by about 10 ppm. Always dose based on current test results and label directions.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"should-i-pre-dissolve-balance-pak-300\"\u003eShould I pre-dissolve Balance Pak 300?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eNo. Do not pre-dissolve BioGuard Balance Pak 300. Add it directly to pool water as directed.\u003c\/p\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"what-is-the-active-ingredient\"\u003eWhat is the active ingredient?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:block [\u0026amp;_strong:has(+br)]:pb-2 [\u0026amp;_strong:has(+br)+br]:hidden\"\u003eBioGuard Balance Pak 300 is listed as 97% calcium chloride.\u003c\/p\u003e","brand":"Hot Tub Pirate","offers":[{"title":"Default Title","offer_id":47932528296123,"sku":"23471BIO","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0269\/2625\/2077\/files\/BioGuardBalancePak3007lbcalciumhardnessincreaserforswimmingpoolwaterbalanceandsurfaceprotection.jpg?v=1780858632","url":"https:\/\/hottubpirate.com\/products\/bioguard-balance-pak-300-7-lb","provider":"Hot Tub Pirate","version":"1.0","type":"link"}