Getting the right parts and maintaining your hot tub properly will ensure that you receive all the benefits with minimal repairs to your spa.
The heavy-lifting action of the pump is what moves the water through the spa’s jets. Pretty plain and simple. The pump consists of two main parts – the motor and the ‘wet end’. The ‘wet end’ has the impellers that force the water through the plumbing and out through the jets.
It is very important to make sure you get the right horsepower and voltage for your spa. If you don’t have enough power, you won’t have enough water pressure for your jets to work efficiently. Too much power and you can damage your hot tub and injure yourself or someone else. You also need to check the frame size needed. Most pumps are 48 frame but some are 56 frame. You will need to know, too, whether your spa need a one or two speed pump.
Pumps are usually self-priming and centrifugal. To be able to pull water, a pump has a vacuum chamber know as the pump housing. This part of the pump will be full of water while the pump in on and stay at least partly full when the pump is off. To make sure that the pump operates as it should, you have to make sure that there is always a enough water in the spa and no air gets into the suction lines. If the level is to low or there is air in the lines can cause cavitation and damage the pump.