One plunge pool, a whole class in the cold

When a pool beats a row of tubs

Three tubs serve three guests in parallel and cost three chillers. One sunken pool serves six to ten together - which changes the product: coach-led cold classes, post-tournament team recovery, the group gasp that makes hotel spa content write itself. Throughput per rupiah tips to the pool at roughly six concurrent users; below that, tubs stay the smarter buy.

Built like a pool, run like an ice bath

• Reinforced basin with waterproofing membrane, then microcement, terrazzo or stone - the same finishes as the gallery tubs, scaled up
• Hidden gutter or skimmer line, floor drain, service pit for valves
• Stainless 316 steps and grab rail - the detail insurers ask about first
• Underwater bench so guests sit chest-deep instead of crouching
• 4 HP chilling as standard; bigger loads get a custom cooling plan

A pool is civil works: it wants a ground-floor slab or engineered support, real drainage, and 2-3 weeks more calendar than a tub install. That is why pools price as projects - Rp 172-325 juta indicative before chilling - and why we check structure before we quote (see how we work).

Operating a group format

Group cold needs rules: posted protocols, a staff member present, session caps. We hand over laminated SOPs and train your team EN/ID - the same commercial hygiene stack as tubs (filtration + scheduled ozone), sized for pool volume. Session design per audience is in the temperature guide.