Why Phosphates Matter in Your Hot Tub
Written by Chris Hands on .
Phosphates are tiny particles that can sneak into your hot tub or swim spa from everyday sources like tap water, leaves, detergents, and soaps. On their own, they are not harmful, but they act as food for algae and biofilm and can make your water harder to keep clear. In this article, we look at what phosphates are in plain English, how they affect your spa (including salt water systems such as FreshWater Salt), and simple steps to keep them under control so your water stays in great condition.
