The relaxing effect of the whirlpool, in a pool or spa, is undisputed. To obtain it, you need to mix the water with air, thus forming bubbles and jets which, with their micro-massage, dissolve tensions and tone the body. A result that requires the right pump.
Blowing pumps for whirlpools are in fact close-coupled centrifugal pumps that suck the water from the tank, filter it and put it back in through the jets. When choosing the pump, for correct sizing, it is important to consider the power of the jets you want.
Furthermore, if you choose a variable speed pump, you will get greater silence and energy efficiency.