Every current or potential spa owner should know how to spot the essential components in their spa system. Parts like the control module, pump, heater, and water jets are present in most spa setups and can be easily identified for repair or replacement.
Spa Control System:
The control system is the “brain of the spa parts world. In essence, the control system governs the flow of water within a spa and when it turns on. These controllers each have a maximum number of pumps that they can control. Advanced models even have multiple speeds for each pump. They are easily installed to a heater and pump system on most existing spa systems. The controllers can also manipulate other essential spa components such as lights, heaters and blowers. Users can control the functioning of their spa with a control pad or wireless remote (not on all models). Any good spa controller will come with pump/blower/ozone cords, the control panel, and applicable housings and gaskets.
One of the most essential spa parts, the electric pump creates the bubbly water flow which spas are known for. They run on voltages ranging from 115V to 230V and have a horsepower range from 1-4HP, typically. Many have multiple speeds which alter the force of the jets. A good deal of spa pumps can be oriented in multiple positions so that they may fit your current setup. Pumps can last for years on end without replacement. Operation for 10 plus years is not unheard of in the least. When a replacement is necessary, it is easy to find an appropriate replacement or upgrade pump by comparing the pumps.
The most common type of spa heater is the “flow-through” heater which is in the shape of a long tube. Water enters one end and passes through the heating element inside. By the time the water emerges from the other end, it has been heated to a piping hot temperature. The heating element consists of a coiled piece of metal which gets hot when electricity flows through it. Having low pH water can damage the heater due to the acidity of the water eating away at the heating element. Maintain pH levels above 7.0 to avoid damage to the heater. Also, the electrical contacts to the heater can jiggle loose over the years, causing additional heat which can travel to the control system and damage it. Check these connections regularly.
Spa jets focus the water from the pump to create a soothing massage on the back, arms and legs. Larger jets are designed to create a broad spray which is loosely focused. Smaller jets are more powerful, focusing the spray to produce a deep-tissue massage. Most jets can be turned on by rotating them clockwise, and turned off by rotating them counter clockwise. To remove them completely for replacement or upgrade, turn them all the way to the left and pull them out.