Hot Tub Foam: What Causes It and How to Get Rid of It Fast

Foamy hot tub water is almost always caused by something that shouldn’t be in the water: body lotion, detergent residue, or a chemistry imbalance. This guide walks you through the real causes and how to clear foam fast, without draining unless you have to.

Hot Tub Foam: What Causes It and How to Get Rid of It Fast

Foam in your hot tub is almost always caused by contaminants like body oils, lotions, and detergent residue reacting with the water. You can knock it down fast with an anti-foam product, but fixing the root cause is what keeps it from coming back. Here’s the full breakdown.