eco3spa - What is biofilm and why should I care if it's in my tub? Biofilm grows in the pipe work of all hot tubs and forms a thick sludgy layer; the
![This is the hot tub of the Airbnb which was the main reason why I rented the spot. Smelled terrible and was obviously not cleaned in forever : r/mildlyinfuriating This is the hot tub of the Airbnb which was the main reason why I rented the spot. Smelled terrible and was obviously not cleaned in forever : r/mildlyinfuriating](https://preview.redd.it/this-is-the-hot-tub-of-the-airbnb-which-was-the-main-reason-v0-31zz76ff8p6a1.jpg?width=1080&crop=smart&auto=webp&s=8233b789c0eda3b4242b3f23ce455c062d6d07bc)
This is the hot tub of the Airbnb which was the main reason why I rented the spot. Smelled terrible and was obviously not cleaned in forever : r/mildlyinfuriating
![Hot tubs are a soup of faecal matter, urine and sweat which can cause red eyes, diarrhoea and BOILS on the body | The Sun Hot tubs are a soup of faecal matter, urine and sweat which can cause red eyes, diarrhoea and BOILS on the body | The Sun](https://www.thesun.co.uk/wp-content/uploads/2020/06/NINTCHDBPICT000588307410.jpg)