Combined drain lines?

[Charlie R]

At yesterdays inspection, I found where the pressure relief valve for the 1959 Burnham boiler was combined with the TPR valve discharge tube of the water heater, and what I believe is a copper condensate drain line from the attic A/C airhandler, all into the laundry tub. The main trunk of these combined discharges is CPVC piping. Now I know the discharges are not supposed to go into the laundry tub, but what about the combining of them and the use of CPVC?

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[Scottpat]

CPVC is fine... Aren't TPR lines suppose to discharge to a visible location and shouldn't be tied in with any other type of discharge lines.

That is also a DIY GE water heater so you know it came from Home Depot or Lowes.

[Charlie R]

Thanks Scott. You are correct, the big question to me is the combining of all these drains into one discharge tube. I have read the IBC section on discharge tubes and it describes the size, the discharge point, the lack of threads on the discharge end, etc, but doesn't address if these have to be run separately or can be combined. If it is OK to combine them, shouldn't they have to go to a larger diameter?

[Marc]

P2803.6.1 Requirements for discharge pipe.

The discharge piping serving a pressure-relief valve, temperature-relief valve or combination valve shall;

...

4. Serve a single relief device and shall not connect to piping serving any other relief device or equipment.

...

Marc

[Charlie R]

There it is! Thanks Marc, much appreciated. Charlie

[John Kogel]

Hello Charlie. How is the Burham boiler standing up to over 50 years of service?

I am curious because a client is very concerned about a 20 year old Burham boiler he is buying.

[Charlie R]

Thing fired up like a champ. Burners looked like they had been replaced, No rust to speak of, no evidence of leaks. it had all the stuff you want to see - expansion tank that wasn't full of water, auto fill, pressure relief, etc. Only issue I noted (beside the combined discharge lines) was the pressure was running a little high, 30 pounds. I did an American Standard once that was over 100 years old. Obviously it had a lot of parts changed, but the basic boiler was still intact and working.

[ghentjr]

Hello Charlie. How is the Burham boiler standing up to over 50 years of service?

I am curious because a client is very concerned about a 20 year old Burham boiler he is buying.

I have a 30 year old Oil Fired Burnham boiler that continues to run like a clock. It is serviced once each year by the company that installed it. I must state that you need to never shut it down as it will leak through the push nipples. It also leaks through the coil gaskets if it is turned off. It needs an adequate air supply for good combustion. Keep it warm and it will run forever. Mine is a "V" series installed in 1984.

[John Kogel]

Thanks, y'all, good info.

[tim5055]

P2803.6.1 Requirements for discharge pipe.

The discharge piping serving a pressure-relief valve, temperature-relief valve or combination valve shall;

...

4. Serve a single relief device and shall not connect to piping serving any other relief device or equipment.

...

Marc

Thnaks Marc...

Just had to show no combined TPR discharge piping, huh?

Nuf said[:-weepn]