What is the downside of spa?
Possible Health and Safety Risks. Skin Irritation: Hot tubs require frequent maintenance to keep the water safe. If your water is not properly treated, it may cause you to have skin irritation or rashes. While personal hot tubs may be relatively safe microbiologically, public (hotel or spa) hot tubs can potentially be very high in infection-causing bacteria (germs), particularly if water is recycled. The root problem is poor public compliance with personal hygiene guidelines and inadequate water treatment maintenance.