For some people that will happen, yes. Is it normal? Everyone is different, for me I had a slight increase going to the bathroom on the first couple of detox baths. After that not so much. Some people say it causes them to urinate more, and this is why it's very important to drink a lot of water before, during and after your detox baths so that you keep yourself hydrated AND flush out those evil toxins. So, yeah, it's common for some people to "pee like a race horse" after their detox bath, but I doubt it will happen every time you take a bath.