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high side of drop header

Chips Member Posts: 33
Can I run my two 4in. risers off the high side of the 3 in. drop header, similar to what Ron Jr. did on his beautiful counter flow system? I know it is not the recommended boiler piping for a 1 pipe gravity flow system with a dry return, but it would save me from relocating my existing risers and mains. The A dimension is over 10 feet and the mains are a couple feet above that.


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