flooded boiler and system?

MIKE6

Every one does this sooner or later.drain the water down to the proper water level.
do not use any water in the house,go to the water meter and see if there is any movement, check the test dials , if turning water is being utilized if well water go to the pump and listen if it is pumping.Most likely no damage is done.Its possible the water is entering with the valve off like a drippingsink faucet.also in a big old house the water maybe slow to return to the boiler

Clueless

I do believe that we have made an okay situation worse. Following the advice of someone after I had complained of have to refill the boiler at least once a week because of the low-water cutoff valve I must have turned a valve the wrong way. The result was water spitting/pouring out of a radiator, flooding of the boiler - sight glass full, and flooding in the basement that is coming from a pipe that is inside a wall - can't really see it. We have been draining the boiler to the water line mark in the sight glass but the water keeps coming back every 20 minutes or so. I'm pretty sure I've turned off the the correct valves. I do believe there is no new water entering the system because I no longer hear the dripping/rain of water coming from the interior wall/ceiling pipe.

I do have a call into a plumber - one of the guys on this site. While I'm waiting for him to call me back - what exactly have I done and what is the damage?

(I have a one pipe steam system . Also we just moved in 3 weeks ago so we have no idea if this is a common occurance or not.)

Clueless

Okay to turn it back on?

No water is running. We completely drained the water from the boiler. Is it okay to fill it back up and turn on the system? Or should we wait until a professional comes and checks it out?