Why do some Hot Tub manufacturers inject their spa with full foam? Ask them as it could and is, often simply, covering a cheaper form of construction.
So simply ask the sales man or sales women why do they inject their Hot Tub Jacuzzi Spa with full foam?
I [...]

“>What are the very many benefits that can be derived from a modern Jacuzzi Spa for stress relief? The word spa is taken from the famous natural mineral water springs at Spa in Belgium and has become used as a common noun to describe any place with a mineral or medicinal spring
If [...]