Here are 3 ways on how to fix your hookah hose if it keeps falling out:
First, using regular tape wrap around your end point of hookah hose in few layers and try to insert it. You can also use teflon tape or electrical tape. Usually it keeps falling out because the connector might be dirty with shish juice, so try to clean it first and it should help.
Also it my be a different size of connector, your connector on the hose is too small, in that situation, you can use larger rubber or if you don’t have one, regular napkin can work instead perfectly. We recommend to switch hookah hose connector to magnetic adapters.