What a Hot Tub System Purge Does — and Why Coastal Tubs Need It

What a Hot Tub System Purge Does — and Why Coastal Tubs Need It is a real challenge for Cape Fear owners, and staying ahead of it is what good hot tub maintenance is all about. If you’d rather skip the chemistry, our team handles it on a flat monthly plan.

Here’s what to know and do.

What a system purge is

A purge uses a specialized cleaner to flush biofilm out of the hidden plumbing lines — the gunk you can’t see that feeds cloudy water and odor. On heavily used coastal tubs, biofilm builds faster.

Why coastal tubs benefit

• Removes buildup regular cleaning can’t reach.
• Restores sanitizer effectiveness.
• Best done right before a drain and refill.

A purge every few months keeps the water genuinely clean, not just surface-clear.