Should hose be coming from the pressure nouns spout on my polaris at the wall? My polaris 380 is running slow. I have cleaned the...

My polaris 380 is running slow. I have cleaned the filter within the pressure relief spigot. Water is coming from the valve element. I don't remember this happening up to that time.
Gas Water space heater thermostat cross-examine?
Answers:    NO it shouldn't.
2 possibilities
To much pressure and its causing the nouns valve to unfurl in compensation
The stopcock is defective and needs to be replaced