Anyone have a problem keeping the adapters on the rubber hoses that come out of the pool wall? Even tightened (by hand) as far as they will go, my outlet nozzle flies right off. I'm sure it's due to the force of the water. I have a 15' soft wall pool with metal frame and use the 2500 gal/hour pump (or am trying to). Any suggestions will be appreciated. I hate to have upgraded the pump and now I can't use it.