I am doing a hand car wash for charity on the 13th november at my petrol station. I need to word a disclaimer notice to ensure that we are not held liable for any damage that is caused by using it. We are only using a hose so no pressure washer and car wash shampoo and some wash mitts. Can someone on here advise of what i need to include in the disclaimed and how it should be worded? Thanks in advance Will.