Lou Manfredini rapid fires through WGN Radio text questions from listeners…holiday lights, mice, duct work and a stained shower.
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Love your show. But as a retired pipe fitter you drive met nut's sometimes with your advice of things in my field.
You told a guy with air in his hydronic system (no heat 2nd for), to turn the t-stat up so the pump comes on and to bleed the first floor radiator's, then the second floor radiators.
The system should be off, then locate the pressure regulator (on the pipe that supplies the system with city water). Some have a handle on them, if you lift it to an upright position it bypasses the pressure control in it, and allows water to enter the system at city pressure. If it doesn't, they all have a screw coming out of the top, with a nut on it to secure its position. If you loosen the nut and turn the screw clockwise, it will increase the pressure to the system. Locate the pressure gauge, with the system off increase the pressure to 25 p.s.i. and have the person maintain that pressure while the radiators are being bled. Then have another person bleed the radiator's as you previously instructed until no air comes out after about 10 – 15 seconds in all of them.
After that's all done, set the pressure (system off) to 12 p.s.i. on a cold system, to around 18 p.s.i. on a warm system using the bleeders, and the pressure regulator controls. There's usually a temp gauge on the pressure gauge for you to do so.
If there isn't enough pressure in the system to start with (at least 12 p.s.i. cold), and you start bleeding the system it may not work, and take hours if you try to do this with minimal pressure in the system!
You don't want the pump running while doing this because you will probably force some of the air you're try to get rid of past the bleed port!
Don't forget to check the compression tank while down there, a very important part of the system.
I try to listen every Saturday morning. There is always something that pertains to things about my house. I also want to say thanks to you for your position on stores being open on Thanksgiving and Christmas. I worked retail grocery for many years, if the store was open the people who worked were totally voluntary. But this last place I worked there is no such thing as a Holiday. They bragged that the only day they were closed was Christmas Day. All fine and well but we as employees we had to be to work on time at 12 am both the Friday after Thanksgiving and the day after Christmas. We were told Dismissal was a definite if we called in those days, even if we were sick. I would say Thank you very much Mr. Scrooge for letting me have Christmas Day off but fifteen minutes after the day was over I had to punch in. The all mighty Black Friday and Christmas "clearance" dollars rule. I quit that job just for that reason.
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