Keep your hot tub water perfectly balanced with Lawrasons pH Minus 950g (Product Code 27082C71) — a fast-acting granular pH decreaser specially sized for spas and hot tubs. Formulated with sodium bisulfate (dry acid), this powerful treatment safely lowers high pH levels and helps reduce total alkalinity for clearer, more comfortable water.

Hot tubs naturally experience rising pH levels due to heat, aeration from jets, and sanitizer activity. When pH climbs above 7.8, water can become cloudy, scale can form on heaters and jets, and sanitizers such as chlorine or bromine become less effective. Lawrasons pH Minus quickly restores balance, helping maintain the ideal pH range of 7.2 – 7.8.

Why It’s Perfect for Hot Tubs

✔ Ideal 950g size for spa maintenance
✔ Lowers high pH quickly and effectively
✔ Helps prevent scale buildup on heaters and jets
✔ Improves chlorine and bromine efficiency
✔ Enhances swimmer comfort by reducing irritation
✔ Easy-to-handle granular dry acid formula
✔ Safer and simpler than liquid muriatic acid

Maintaining proper pH is critical in hot tubs because smaller water volumes react more quickly to chemical changes. Regular monitoring and adjustment prevent costly equipment damage and uncomfortable water conditions.

Directions for Use

• Test spa water to confirm pH is above 7.8.

• Add small amounts with the pump running.

• Sprinkle evenly over the water surface.

• Circulate for at least 30–60 minutes before retesting.

• Repeat as needed until pH returns to 7.2 – 7.8.

Because hot tubs hold less water, always adjust gradually to avoid overcorrection.

Best Use for Hot Tubs

The 950g container is perfectly sized for multiple spa adjustments throughout a season. It provides precise control for routine maintenance, heavy bather load corrections, or post-shock pH balancing.

Protect your spa equipment, improve sanitizer performance, and enjoy crystal-clear, comfortable water with Lawrasons pH Minus 950g — the reliable pH down solution for hot tubs and spas.