Hello. I have a townhouse from 1927, original radiators. 2 floors, 7 total radiators. I went through and bled them all. There is one radiator on the first floor that when you key it to bleed it just runs out water like a faucet and is continuous. I let it run for 5 minutes and filled up a bucket of water. All other radiators just a drip or just air comes out. My question is, is this normal? If not, is this a cause for low water pressure to my upstairs? Also the valve at that radiator doesn’t close. Thank you.