PVC SDR 35 or 28
PVC SDR 35 or 28
(OP)
Some regulators here ask for wastesewer pipe to be SDR35 PVC while drainage has to be SDR28 PVC.
I saw both to be SDR28 and some other ask for SDR28 for wastesewer and 35 for drainage.
I'm not sure to see where this all comes from. Any clues?
I saw both to be SDR28 and some other ask for SDR28 for wastesewer and 35 for drainage.
I'm not sure to see where this all comes from. Any clues?





RE: PVC SDR 35 or 28
Both products are made with the same raw materials. The SDR28 is a little stronger pipe than the SDR35 and would be an upgrade over the weaker SDR35.
I recommend that the SDR28 be used because the difference in cost is minimal.
RE: PVC SDR 35 or 28
SDR 26 should be more common than SDR 28.