Can I use SpaBalancer even in a 10,000 litre swim spa?
Answer:
The cleaning of the water in a swim spa is in one sense easier to achieve, and in another sense harder to achieve than with a jacuzzi. It is easier because the water temperature is lower. Also the amount of grime that ends up in the water is lower because, as a rule, it is only used by a few people.
In summer the swim spa is left open for a longer time and kids splash around in it. This means a lot more grime gets into the water compared to a Jacuzzi. For this reason, we have specified relatively high amounts of SpaBalancer and UltraShock in our water maintenance manual. Those amounts are 100ml SpaBalancer and 100ml UltraShock per week. If the swim spa is used by two people 3-4 times a week who shower beforehand, and the swim spa is covered when not in use, then the amount of SpaBalancer and UltraShock can be lowered. I know people who manage with 50ml SpaBalancer and without UltraShock. Another large factor here is whether the swim spa has additional ozone or UV disinfectant. These also reduce the amount of SpaBalancer required.