Hot tub pumps are essential to the reliable operation of your jetted spa. They circulate water through the jets to offer a soothing massage and through the heater to keep your spa water at the ideal temperature. Hot tub pumps come in three different sizes: larger 56-frame models that power the jets in large spas, smaller 48-frame models, which are popular in plug-and-play spas, and small continuous-running circulation pumps.
Hot tub pumps with the 56 frame motor are generally rated for continuous horsepower because the motor has a larger diameter and more copper winding inside, which is designed to run cooler under heavy load.
Pumps with a 48-frame motor generally have an uprated horsepower rating but deliver lower flow because the smaller motor is designed to operate under lighter loads in smaller hot tubs.
Circulation pumps are smaller and designed to push water through the hot tub heater and filter it continuously. They run 24/7, are highly energy efficient, and typically operate whisper quiet.
Hot tub pumps are assembled with a wet end that contains an impeller and seal assembly, attached to an electric motor that spins the impeller to move water. The pump's wet end is connected to the suction, drawing water from the hot tub, and it returns the water through the pressure side to the jets. The internal parts of a hot tub pump wet end, such as the impeller, wear ring, o-rings and shaft seal kit, are replaceable to extend the service life of your hot tub pump.
The following issues are common problems that may indicate hot tub pump may need repairs or replacing:
Possibly! The pump, while being a vital part of the hot tub system, can be installed by anyone with the right tools and skills. In fact, you'll save money by purchasing and installing your hot tub pump yourself. Always make sure to disconnect your electrical supply at the main panel before attempting to disconnect or reconnect your hot tub pump. It is recommended to hire a licensed electrician if you're unsure of how to safely and properly replace your pump.
Contrary to popular belief, a larger pump is not necessarily advantageous for your hot tub. Unless advised by a hot tub professional or someone knowledgeable with the amp load limits of your hot tub control system, that your current pump is undersized, it is advisable to replace it with a pump of the same horsepower and amp ratings.
