My Garden Pool Calcium Booster Granular 2 lb (2×1 lb) Kit with 20-Count Test Strips & Scum Sponge — Raises Hardness, Reduces Foami

Leisure Time Calcium Booster is a granular calcium hardness increaser for spas and small pools, packaged as two 1 lb containers and paired with 20-count My Garden Pool test strips plus a scum-absorbing flower sponge for cleaner water and surfaces.

Keeping calcium hardness in the recommended range prevents equipment wear and surface etching while reducing foaming and cloudy water. This kit combines a practical, easy-to-measure granular formula with simple testing and a targeted scum sponge so you can measure, adjust, and remove scum lines without juggling multiple products.

How do I use this calcium booster to raise hardness correctly?

Measure your pool or spa volume, test current calcium hardness with the included 20-count My Garden Pool test strips, then dissolve or broadcast the granular booster according to dosage guidance. The product raises calcium predictably—one ounce increases hardness by about 7 ppm in 500 gallons—so small, incremental additions avoid overshooting the ideal range.

• Test water first with the included test strip for baseline calcium hardness.
• Calculate dosage using the one-ounce per 7 ppm per 500-gallon reference.
• Broadcast evenly with circulation running; allow full turnover before retesting.

Will this affect my sanitizer or cause foaming?

The granular booster is formulated to be compatible with common sanitizers such as chlorine, bromine, ozone, and biguanide systems, and helps reduce foaming that can occur in soft water. Because it increases hardness, you should see fewer foam events and improved water clarity when levels fall within the recommended 150–400 ppm range.

• Safe to use alongside chlorine, bromine, ozone, and biguanide sanitizers.
• Helps prevent foaming associated with low calcium hardness.
• Maintain recommended range to protect equipment and surfaces.

What is the best way to remove scum lines and surface oils?

The included Scum Sponge (flower-shaped, oil-absorbing) targets scum lines and floating oils without chemicals—just press it against the waterline and lift away trapped residues. It’s reusable and made to pick up skin oils, hair products, and lotion buildup that often cause visible scum lines on spa and pool surfaces.

• Press sponge against the waterline to absorb oils and scum.
• Rinse and wring between uses; replace when saturated or worn.
• Compliments chemical care by removing residues physical cleaners can’t dissolve.

How often should I test and adjust calcium hardness?

Check calcium hardness regularly—monthly for maintenance, and after major water top-offs or refills. Re-test after any large chemical addition or if you notice foaming, cloudy water, or surface scaling; adjust in small increments to reach the target 150–400 ppm range.

• Monthly routine testing keeps levels stable and predictable.
• Test immediately after filling or adding large volumes of fresh water.
• Rebalance slowly: add small amounts and retest after circulation.

Who is this for: This kit suits hot tub and small pool owners who want a straightforward, granular calcium booster with precise dosing, plus basic water testing and a physical tool for scum removal. It’s ideal if you prefer granular products over liquids, want clearer water with fewer foam issues, and appreciate a simple, non-chemical sponge to keep waterlines tidy.