Can SpaBalancer also be used for a wooden hot tub with a stainless steel oven and a sand filter system? And how do I clean the sand filter?
Answer:
Yes, SpaBalancer can also be used for wooden hot tubs, provided that the sand filter is regularly cleaned with UltraShock and back-rinsed.
This is how it works:
We highly recommend closing the valves before back-flushing and putting Ultrashock in the sand filter - approx. 25 ml per litre of filter capacity. The Ultrashock should remain in the filter for at least 12 hours before proceeding with the back-flush. Ultrashock is a very powerful oxidant which also quickly and effectively destroys biofilm, so it is ideal for cleaning sand filters.