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Steam radiator squirting water
So I have a customer that has been living in the house for 3 winters he has a 1 pipe steam heating system, he called us in to figure out the issue he is having for the frist time. Parts of his system that is having the issue is 2 radiators on the frist floor and 1 on a second floor that are connected to the same feed pipe off the header and there is a tee for the return between the radiator on the first and the other 2 radiators, so the issue is that he is getting alot of water out of only 1 radiator on the 1st floor and some out of the second floor radiator we changed the return line to see if it was clogged and still nothing we have no idea what it can be .
Just my thoughts I dont like how the return line is in between the 1st floor rad and the other 2 rads but it was working before not sure what it can be