Hi NicNac12 welcome to the forum ..Im afraid I dont know the answer to your query but have inserted the link for you, that if you click onto, it will take you right to the Ask a Nurse section of the site and if you post your query there they may be better able to answer your query for you and hopefully help you out. Best wishes for now.
Hi Nicnac. Its Automatic. I hang mine up on a clothes horse when at home just to help it when I lie on my couch, however it’s not required. The balloon slowly deflates over the hours and you do notice it. It’s a remarkable bit of kit to be honest.
