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💦 Elevate your soak game—because your hot tub deserves pro-level care!
AquaDoc Spa Calcium Hardness Increaser is a professional-grade granular formula designed to raise calcium levels in hot tubs by 10ppm per ounce, preventing corrosion, etching, and staining. Easy to use with a simple 4-step process, it ensures balanced, crystal-clear water and is trusted by thousands of hot tub owners. Made in the USA and highly rated, it’s the essential spa chemical for maintaining optimal water hardness and prolonging your hot tub’s life.
| ASIN | B08TGTHK9Q |
| Best Sellers Rank | #5,931 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #25 in Swimming Pool Balancers |
| Brand | MAV AquaDoc |
| Brand Name | MAV AquaDoc |
| Customer Reviews | 4.7 out of 5 stars 678 Reviews |
| Item Form | Granular |
| Item Weight | 14 Ounces |
| Manufacturer | MAV AquaDoc |
| Number of Items | 1 |
| Product Benefits | Corrosion |
| UPC | 850026022131 |
| Unit Count | 14.0 Fluid Ounces |
D**S
Works well
Products works great
D**E
Best value
Better than similar products, larger container for the money.
A**N
Great for my spa
I have bought this product several times because my hot tub requires it. Seems to work really well.
R**T
TINY
Probably works but its 2x as much money as other brands. Look for 1.8 lbs or 28 oz. This is only 14oz so TINY
E**D
Balanced My Spa Water Quickly
Worked exactly as intended. My spa water was out of balance and causing cloudy water — one treatment and it cleared right up. Easy instructions, no weird residue.
E**.
Hot tub
Works good
B**R
Does what it’s supposed to do
It does what it’s supposed to do. I didn’t have to use a lot. The directions are easy to follow and this bottle will last a while. I use it for a SaluSpa inflatable hot tub.
S**8
Works as described
Does what it is supposed to do. Lower cost than elsewhere. No complaints.
N**E
Ça aide plus que je pensais
Produit vraiment bon
S**E
Product works as expected I will order again.
Unfortunately one cap was not screwed on type and it mostly ended up in the broken bag and lost some , there were 2 bottles and the product worked well .
Trustpilot
2 weeks ago
2 weeks ago