Hot tub users are being warned about dangerous bacteria - including faeces - that could be swimming in the water.
Experts say bacteria thrive in the bubbling warm water and can cause potential health hazards. The bacteria can give people rashes, infections, diarrhoea and even herpes.
QS Supplies have outlined which germs could be lurking in your hot tub and the reasons why you should be getting it cleaned regularly. They say that five people sitting in a hot tub will contribute to around a tablespoon of faeces to the water - due to residue on the skin, reports the Daily Record.