How to Maintain an Inflatable Cold Plunge Tub

An inflatable cold plunge is dramatically easier to maintain than most people expect. Cold water inhibits bacterial growth, so you can go longer between changes than a hot tub. Here's the routine that keeps things clean and the tub lasting years.

Filtration

Run a cartridge filter for 15 minutes after each plunge if the tub is used daily. It catches skin cells and body oils before they cloud the water.

Sanitization

For single-user home tubs, a small dose of hydrogen peroxide or an ozone sanitizer keeps the water clear. Avoid chlorine — it's overkill and hard on the tub fabric.

Water changes

Change the water every 2–4 weeks for daily home use. Weekly for multi-user or gym setups. Ozone-treated tubs can stretch to 6 weeks.

Off-season storage

Drain fully, dry the interior with a towel, deflate, fold, and store in the included carry bag away from direct sun. Stored properly, an inflatable tub will hold up for 5+ years.