ProTeam Spa Calcium Hardness Increaser for Hot Tub, 1 lb
ProTeam Spa Calcium Hardness Increaser for Hot Tub, 1 lb
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About This
- Corrosion Prevention: Low calcium hardness makes hot tub water aggressive, corroding pumps, heaters, and metal fittings over time. ProTeam Spa Calcium Hardness Increaser hot tub owners trust is a calcium chloride flake formula that raises hardness back to the ideal range so your equipment stays protected.
- Scale Prevention: When calcium runs low, water pulls minerals from surfaces instead, leaving behind stubborn scale that clogs filters and strains heaters. This calcium booster for hot tub water buffers against that imbalance and helps stop scale from building up.
- Water Stability: Balanced calcium hardness keeps pH and total alkalinity from swinging, so your other hot tub chemicals work the way they are supposed to. Stable water is easier on your equipment and your regular maintenance routine.
- Bather Comfort: Water that is too soft or too hard can leave skin feeling irritated and cuts down on how well soaps and lotions work in the tub. Getting hardness into range keeps the water comfortable for everyone who uses it.
- Easy To Use: These fast-dissolving white flakes work directly in circulating water — no premixing needed. Add 1 oz (2 Tbsp) per 500 gallons to raise hardness ~10 ppm. For a big increase, work in increments of no more than 5 oz at once, since larger amounts won't fully dissolve. Works with all sanitizer systems: bromine, chlorine, mineral, and biguanide.
- Care Guide: Each bottle includes access to a free downloadable SplashWiz Hot Tub Chemicals Care Guide to help with the rest of your water balance.
Overview
- Brand : SplashWiz
- Item Weight : 16 ounces
- Item Form : White Flakes
- Product Benefits : A Fast-Dissolving Calcium Increaser For Hot Tub Water, Mix Right Into Circulating Water., A Little Goes A Long Way, About 2 Tablespoons Per 500 Gallons, A Skin-Friendly Hot Tub Hardness Increaser For Every Soak, The Spa Hardness Increaser For Hot Tub Raises Calcium Hardness To The Ideal 150 To 250 PPM Range., This Hot Tub Calcium Hardness Increaser Protects Pumps, Heaters, And Pipes A Fast-Dissolving Calcium Increaser For Hot Tub Water, Mix Right Into Circulating Water., A Little Goes A Long Way, About 2 Tablespoons Per 500 Gallons, A Skin-Friendly H… See more
- Number of Packs : 1

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
FAQ
Water Filtration & Home Water Guide