Make sure the branch of the T-connector faces the wall behind the sink.
保证T型排水管的支管面对墙并在水槽后方。
2
Unscrew the nut that connects the drain to the flange using an adjustable wrench if you are replacing the pop-up drain. Then remove the drain flange from the T-connector.
If you can't unscrew the drain flange from the T-connector, use a reciprocating saw with a metal-cutting blade and cut the drain assembly away just above the T-connector.