A spa hot bathtub is not necessarily equipped with a massage system. Its core function is "thermal therapy", which promotes blood circulation, relaxes muscles, and relieves tension and stress through the effect of hot water.

Most dryer circuits are 30 amps, while outdoor jacuzzi bathtubs usually require 50 amps of current support. If an outdoor jacuzzi bathtub with a higher current requirement is plugged into a dryer socket, it may cause the socket or wire to overload, or even cause a fire.

The main role of baking soda in outdoor jacuzzi bathtubs is to increase alkalinity because it can provide bicarbonate, a compound that can increase the buffering capacity of outdoor jacuzzi bathtub water. Therefore, baking soda is usually recommended to increase the alkalinity in water rather than reduce it.

Although spa jacuzzi bathtub water is often treated with disinfectants such as chlorine or bromine to inhibit the growth of bacteria and fungi, these disinfectants are not a panacea, and the chemicals and microorganisms in the water may still affect the user's health.

When the water hardness of the outdoor spa jacuzzi bathtub is too high, the most common problem is the accumulation of scale. In order to reduce the formation of scale, the following methods can be adopted: ● Use water softener ● Use water quality stabilizer ● Clean the water circulation system regularly

In most spa jacuzzi bathtubs, the filter cartridge is usually located near the water surface, embedded under the filter tank or filter cover. This position allows the filter to directly contact the water surface and quickly remove floating impurities.