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💦 Clear water, zero foam, all chill—because your oasis deserves the best.
Bastion’s Hot Tub Defoamer is a 64 oz professional-grade silicone emulsion designed to quickly eliminate and prevent foam in pools, spas, fountains, and waterfalls. This eco-friendly, non-toxic formula works instantly without leaving oily residue or altering water chemistry, ensuring crystal-clear water while being safe for people, pets, and the environment. Proudly made in the USA and cruelty-free, it’s the go-to solution for maintaining pristine water clarity effortlessly.


















| ASIN | B0996BRM1J |
| Best Sellers Rank | #3,521 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Hot Tub Accessories |
| Brand | Bastion |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,472) |
| Item Form | Liquid |
| Item Weight | 4 pounds |
| Manufacturer | Bastion |
| Number of Items | 1 |
| Package Dimensions | 9.69 x 4.72 x 4.69 inches |
| Product Benefits | Prevents Foam |
| Unit Count | 64.0 Fluid Ounces |
R**N
Inexpensive and works
Works instantly
J**R
Works
Works as expected
S**0
Pool Chemicals
It works great but it ended up taking the whole jug to clear the water
P**L
Good defoamer.
Works as advertised.
G**L
Good product
Good product for price
T**Y
I recommend this product.
Worked surprisingly well.
J**Y
Not the best defoamer I have used
The instructions say to use 1-2 ounces in your hot tub. I used 5 and it cleared some. You have to shake this defoamer up really good, it comes with clumps of some kind of milky looking strands that require you to vigorously shake before use. I will be sticking to my regular brand of defoamer from now on.
R**.
Defoamer
Works great
A**R
Works as expected. Great value for your money.
K**B
Good. Would like some more. Seems to leave a tad bit of film on your skin. Other than that works insanely well
J**A
Once added to my hottub the foam instantly disappears. The foam is from to much soap in laundry, perfume, hair products, ect. Easy to use, I get eczema and it was kind to my skin.
R**E
Works quickly but needed a double dose of it
S**E
Does what it is supposed to.
Trustpilot
1 month ago
2 weeks ago