Ahh-Some

Ahh-Some is the gold-standard biofilm purge for hot tubs. It dislodges the biofilm EPS matrix — the slimy bacterial layer that builds up inside spa plumbing where no brush or regular sanitizer can reach — so it flushes out with the old water when you drain.

What biofilm is and why you should care: bacteria in plumbing lines protect themselves under a slippery polymer shield. Inside that shield they're largely immune to chlorine and bromine — and they steadily re-contaminate your fresh water, eat your sanitizer, and cause odours and cloudiness that no amount of shock seems to fix. Ahh-Some's formulation softens the outer walls of that shield so its scrubbers and carrier salts can break the film off the pipe walls.

How to use it: add Ahh-Some to the spa water before a drain, run all jets on high per the label directions, and watch what comes out — the brown-grey gunk on the waterline is what was living in your plumbing. Drain, wipe the shell, refill. It will not harm o-rings, seals or plumbing.

Formats: single-use 0.5 oz packet (one purge) or the 4 oz tube — about 24 teaspoon-doses, enough for many cleans. A purge at every drain-and-refill — typically each season — keeps fresh fills genuinely fresh.