Header has no pitch

Snowmelt

A friend of a friend called me about an hour ago, said header didn’t have a pitch. No drop header which wasn’t that big of a deal. From the risers had a elbow going into a 4 inch nipple. Used both risers with something like a 14 inch pipe connecting them , from there , there are two take off with small nipples separating them. Then another 4 inch nipple to go down into the return. The question is , there was no pitch either way so I don’t think any water was collecting, the supply take off were hot .... just not going to second floor.
The question is a perfectly straight header, will that be a reason for steam not to travel properly

Jamie Hall

Not really. It's not ideal, but that large a header shouldn't be a factor if, as you say, the takeoffs go up.

Snowmelt

That’s what I thought............. there is something else going on, possible not skimmed correctly .

neilc

Skimming = what's the water look like and does it bounce?
Riser to 2nd floor not getting hot(?) = need venting up there somewhere, or at the main, after that riser / end of main.

JUGHNE

Are we talking 4" long nipples or 4" in diameter nipples/piping?

Snowmelt

4 inch long by 2 inch wide nipples

EBEBRATT-Ed

If there was water in the header you would likely hear the problem. Level should be fine if the header and the risers are the right size and configured correctly