water loss

Subject:

Comments:
: Happy New Year everyone, : I am a new homeowner. My 1940s town-house has a one-pipe steam system with aging Utica boiler. The system has long been neglected by the previous owner. : We flushed the boiler, replaced some worn-off electric wires, replaced old radiator vents with new Gorton vents, according to the chart. : We are now faced with the following issues: : 1.I have to add water about every three days. I suspect a leak. : I understand from past messages on this site that this can be caused by a hole in the boiler, a hole in one of the pipes or bad radiator vents. : I have new vents. I dont know if there is a test to tell whether there is a hole in the boiler or one in a pipe? : 2.Every couple of days I can see some black sediment in the lower end of the sight gauge. : I understand from past messages that this can be caused by dirt in the boiler. : How can I clean it ? : 3.The radiator on the second floor, in the bedroom, makes loud gurgling sound coming from the area of the supply valve. : I suspect defective/old supply valve and I intend to replace it. : What is the procedure for replacing supply valve ? Do I also have to do something to the radiator in question ? : Last, but not least: It is 20F outside, and I got a newborn in my house. Is it smart to start doing things to the system now, or should I wait till spring? : I really appreciate your help, gentlemen!