Humidifier is not getting any water. Saddle valve for 1/4 inch copper water line to humidifier is open and copper pipe is not kinked, bent, twisted or otherwise distubed. HVAC guy thinks that saddle valve has shifted and that I should remove old saddle valve, plug existing hole. and install new saddle valve. He didn't fix it since it was a maintenence visit and he didn't have a saddle valve. Should I install a new saddle valve to fix the problem?
How does one plug the existing hole?