When you are using the inflatable spa, if the spa pump fails or the connecting pipe is damaged, you need to remove the connecting pipe from the inflatable spa.
However, the pool is full of water. At this time, you just need to screw two caps on the two nozzles which are on the inner wall of the inflatable spa, so you don't need to drain the water.
A third cap is provided just for standby. Please refer to the attached video file.