I am a first time home owner and recently bought a 1963 split level home in foreclosure. On afternoon when cleaning the basement I noticed that although no water was running, my meter pointer kept moving; I gave it a while to see if the hot water tank was filling; but yet the pointer kept moving. I finally turned off the main valve and the pointer did stop; however there is water draining into the utility sink in the basement still. I could hear water by the utility sink, until I turned off the main valve. Where could this water be coming from? I don't hear any of my toilets are running.