What Is Biofilm in My Hot Tub and How Do I Get Rid of It?

Biofilm is a slimy film that can build up on the inside surfaces of a hot tub.

Here's how to get rid of it.

1. Add a double dose of Arctic Pure Boost

Add a double dose of Arctic Pure Boost:

• Regular hot tubs: 1 cap.
• Swim spas and All Weather Pools: 3 caps.

2. Wipe down the inside with a wet rag

The fastest way to get rid of biofilm is to get in the spa and wipe down the inside with a wet rag.

You can do this with the water still in the spa.