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💧 Keep your spa pristine and your vibe flawless with Clearwater pH Minus!
Clearwater pH Minus Decreaser is a 3 kg granular formula designed to lower and maintain optimal pH levels (7.2-7.6) in hot tubs, spas, and above-ground pools. BISHTA approved and trusted by leading brands, it ensures water stays hygienic, enhances chlorine effectiveness, and delivers fast, easy water balancing with clear instructions and reliable results within hours.
| ASIN | B0G5YNSKH4 |
| Best Sellers Rank | 248 in Garden ( See Top 100 in Garden ) 1 in Pool Balancers |
| Customer Reviews | 4.6 4.6 out of 5 stars (9,716) |
| Date First Available | 9 Dec. 2025 |
| Item model number | CH0008-BDL-3KG |
| Manufacturer | Clearwater |
| Part number | CH0008-BDL-3KG |
| Product Dimensions | 20 x 10 x 9.5 cm; 3.32 kg |
D**I
Super nice for hot tubs.
These granules are easy to measure and dissolve, and they reliably bring the pH back into the ideal 7.2–7.6 range after testing the water. The instructions are straightforward to follow and results show within a few hours, making routine water balancing simple even for beginners. For the 1 kg size the tub lasts a long time, so it offers good value while keeping hot tub and pool water clear and pleasant to use. Overall, it does exactly what is needed with no fuss, so it fully deserves a 5‑star rating
Z**N
Great product
This works really well in our hot tub, and keeps it fresh and clean. Comes in a secure tub that is waterproof and easily storable
T**L
Value for money product
Does a good job,mixes well before pouring into the hot tub
R**D
Easy to use
Very good product
S**N
Buy again
Brilliant good price
G**.
Helped clean the pool very well
Great product
T**D
Works well!
Must have for Lay Z Spa's - works great at increasing the PH after around 4hrs.
S**G
As advertised
Does the job.!!
Trustpilot
1 week ago
3 weeks ago