High concentrations of impurities caused by water evaporation, body oils, perfumes, and other contaminants may accumulate in the spa and cannot be filtered out. Consequently, it is advisable to drain your spa and refill it with fresh water every six to eight weeks or more often, depending on the amount of use.

Always turn power off to your spa before draining. Immediately after turning the spa back on, lower the temperature setting so the heater will not come on. Keep the heater disabled until you have full flow coming out your jets for several minutes.

The water level in the spa must be kept at its normal level water line mark. Note: Evaporation and splashing will cause the water level to drop.

Coleman spas are equipped with both external and internal drains. The external drain is used for draining the spa. The internal drain(s) are used to remove water from internal hoses when winterizing your spa, or if the water is severely contaminated.

Priming the spa

Be aware that after draining and refilling your spa you may need to discharge air in the system in order for the pump to operate again. Should you experience an air-lock, you can remove the filter and insert a garden hose into the center hole and flush water through the system.