⬢ Pool Products
HASA has the chlorine, algaecides, and sanitizers you need to keep your pool or spa clean and clear.
⬢ Hot Tub Products
Shop our full line of Hi-Temp spa care products, including Eco-Safe Clarifiers and pH Increasers.
⬢ Ancillary Products
Our eco-friendly water treatments are science-backed and purposefully focused.
⬢ Mini-Bulk Program
We deliver a premium 12.5% sodium hypochlorite solution for sanitizing commercial pools and large-scale water systems.
7 min read
In the 1930s, Dr. Wilfred F. Langelier introduced something that reshaped how we understand water balance. It's called the Langelier Saturation Index, or LSI. His research originally focused on municipal water systems and how to prevent scale...
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5 min read
When it comes to pool chemical safety, there’s no room for shortcuts. Whether you’re a seasoned pool service pro or someone managing a community or...
8 min read
When most people picture a pool service visit, they imagine a quick skim, a chemical top-off, and a wave goodbye. But anyone who’s watched real pool...
5 min read
How to Prevent Algae Without Algaecides Few things are more frustrating than watching your pool water shift from clear blue to murky green. The...
6 min read
When you walk past a pool and catch that strong “chlorine smell,” your first thought might be that there’s too much chlorine in the water. But here’s...
2 min read
Pool Party Reality Check: The Water Has to Be Ready Before the People Are There’s nothing like hosting a pool party — laughter, music, and people...
2 min read
Owning a Pool is Not Just a Vibe — It’s a Responsibility With Chlorine Attached A swimming pool turns your backyard into a private resort — a place...
4 min read
When Your Pool Water Feels Like Algebra — But Doesn’t Have to Maintaining properly balanced pool water can sometimes feel like solving a cryptic...
4 min read
The Smart Way to Own a Pool: Safe, Clean, Clear Confidence A swimming pool isn’t just a backyard feature — it’s an investment in your family’s...
