“I bought this foot spa to do my own pedicure during the quarantine. With a limited budget, this machine was the right price. The spa creates bubbles and the pumice stone is a nice touch. It is has a low hum like a hand held vacuum cleaner. According to the instructions, you should not add any salts or products to the spa. Who does a pedicure without something to soften the feet? So I added three pumps from my body wash dispenser to the spa. That soap turned the spa into a bubble making machine! Lesson learned-next time less soap.I used hot water and turned off the bubble maker to keep the spa temperature warm. The water became cool after 15 minutes.I have only used the spa once, but so far I am pleased.”