Remove Calcium Buildup Without the Harsh Chemicals
At Piranha Water Products, we make biodegradable cleaning products designed to remove water scale, calcium deposits, and mineral buildup from your pool, spa, and home.
Our Story
We started Piranha more than 10 years ago because we were dealing with the same frustration many pool owners face: that stubborn white line around the pool that makes everything look dirty no matter how much you scrub. We tried product after product and nothing seemed to work the way we wanted it to.
So we went looking for something better.
After researching industrial-grade descalers used in tougher commercial environments, we found solutions that actually worked and adapted them for everyday use around pools, spas, bathrooms, and outdoor living spaces.
Today, Piranha products help homeowners safely tackle hard water scale and mineral buildup without the harsh fumes, dangerous handling, or overpowering odor associated with traditional acid cleaners.
No gimmicks. No overcomplicated process. Just effective chemistry designed to break down stubborn buildup and make cleaning easier.
Piranha Spray
Our spray is for safe and effective removal of smaller areas of calcium deposits, and other water born mineral deposits. It works like muriatic acid but it won’t burn your skin. There’s no pungent odor, it’s safe for the environment, and is great to use anywhere you need it, in the backyard or the bathroom.
Testimonials
Piranha Gel
Our gel is for heavy duty water scale removal on spas, pool water lines, and other water features. The gel is a highly concentrated formula that sticks to vertical walls to enable longer times of contact between the acid and a calcium area. This product is fully biodegradable and neutralizes with water. Comes in a 32 oz wide mouth bottle.
“Wow...great product. Pulverized calcium build-up regardless of how heavy it was. Excellent stuff.”
— Donald S.
“This stuff is the bomb! It melted away the calcium deposits on my pool. So easy to use and it works fast. I’ll never buy anything else for scale build up.”
— Vince H.
We tried several different pool products and household cleaners to remove calcium/scale from our pool tiles. This product is a bit pricey, but you don’t have to use much to clean your pool. Well worth the price! Took the water down to expose the tile, applied with two inch paint brush, waited 15 minutes and removed. Clean tile!
— Amazon Customer