Dirt accumulates around the jets in a Jacuzzi due to their particular shapes. There will still be some stains in the corners when scrubbing them using an ordinary sponge.

At this point, we can use a cotton swab moistened with ethanol to clean the dirt around the jets, or use an old toothbrush with a dab of a neutral detergent to remove the dirt.

However, when cleaning using ethanol, be sure to try it in an inconspicuous spot to check whether it will cause the hardware color to fade. If not, you can use it in a wider range.

A final reminder to you: when cleaning the whole Jacuzzi and its piping, do not use washing powder to undertake large-scale cleaning. It is advisable to use a dedicated detergent for Jacuzzi so that the function and life of the tub will not be damaged.