Dirty foam in a Hot Tub or Spa can be the result of any number or combination of factors which may include an extremely dirty spa filter, bacterial/slimy coating on the walls of the hot tub, inadequate levels of sanitation, or high Total Dissolved Solids (TDS) level.
- Add 25 g of brom product for every 1,000 litres of water. Wait 24 hours. Run the hot tub for 20 min. Wait 24 hours.
- Add 250 ml of decalcification product for every 1,000 litres of water. Let the spa run 1 hour then drain it.
- Refill the hot tub and start your maintenance program.