If anyone can give advice on these it would be appreciated. Filled the tank with water for the first time this year to clean the tank and pipes. Only to have the tap head blow off and start spurting water everywhere until I turned off the pump and got the pressure down. It doesn't want to stay back on and I don't want to pull the other off to see how it works. Do I need a new tap assembly or is it hopefully a lot more simple. Thanks in advance.