Roback
Member
My family woke up to inconsistent water pressure coming out of faucets in the house this morning. Checked around for any noticeable leaks in the house and did not find any. Checked the hot water heater, and noticed that the TMP valve must've opened up during the night because there were some water had come out of the discharge pipe. When I checked at the valve was closed properly. My Bradford White water heater is approximately 10 years old, however I serviced it recently, and it seems to be running fine. My set up is that the mainline hits a pressure reducing valve and enters the house. The pressure reducing valve is not leaking, which is usually a sign of failure from my experience. When I open the faucet, the pressure is fine for a few seconds and then drops to about 50%. Here in Los Angeles, the weather has changed dramatically in the last few days. It went from being very hot to being very cold. Not sure if this has any relevance? Any ideas as to what could be causing the pressure drop? What do I check next? Thanks for your help.