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💦 Keep your spa flawless—because soft water is so last season!
AquaDoc Spa Calcium Hardness Increaser is a professional-grade 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 perfectly balanced water and protects your investment. Made in the USA, it’s the essential spa chemical for maintaining crystal-clear, healthy water.
| 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 months ago
1 month ago