For the first time ever, I bought a quality garden hose (its the silver one with a yellow stripe from Lowe's. I think other people here have the same one). The boss put a plastic nozzle on it maybe a year ago and now the nozzle needs to be replaced but I cannot remove it! The fitting on the end of the hose appears to be brass. I THINK the nozzle is is plastic. It's a little hard to get a good grip on the nozzle to twist hard enough. Any suggestions?