1. Remove the old drainer and unscrew the retaining ring of the drainer from below with one hand. That's how it fell off.
2. Just wipe up the dirty things.
3. Start installing new sewers. Check the gasket before installation. One is a white foam gasket and the other is a black rubber gasket. White gasket at the top, black rubber gasket and fixing sleeve at the bottom.
4. When you understand this sequence, put it into the sewer main body, and the casing should be aligned with the screws, and it must be aligned neatly before it can be tightened.
5. After it is installed, just cover it.
6. Note: Just tighten the fixing sleeve here. Don't push too hard. If you screw it too tightly, you will be in trouble.
Extended data:
Sewer pipes are pipes used to discharge used water. Wash your face, vegetables, urinate, etc. It is discharged into the sewer through the sewer pipe. Sewage and wastewater from sewers, kitchens and bathrooms cannot be discharged together. DN50 is used for kitchen sink, DN50 is used for floor drain, DN75 is used when they are combined, DN50 is used for toilet as long as it is not a toilet, and DN 100 is used for toilet and toilet rear pipeline.
The meaning of DN: the character Ф representing the nominal diameter of the pipeline: the external diameter of the pipeline.
Dn15-Ф 22mm, DN20-Ф 27mm
DN25-Ф 34mm, DN32-Ф 42mm
DN40-Ф 48mm, DN50-Ф 60mm
DN65-Ф 76 (73) mm, DN80-Ф 89 mm
Dn100-Ф114mm, dn125-Ф140mm.
Dn150-Ф168mm, dn200-Ф 219mm.
Dn 250-Ф 273mm, DN 300-Ф 324mm
Dn 350-Ф 360mm, DN 400-Ф 406mm
Dn 450-Ф 457mm, DN 500-Ф 508mm
Dn600-Ф 610mm,
Dn15-Ф18mm, DN20-Ф 25mm
DN25-Ф 32mm, DN32-Ф 38mm
DN40-Ф 45mm, DN50-Ф 57mm
DN65-Ф 73mm, DN80-Ф 89mm
Dn100-Ф108mm, dn125-Ф133mm.
Dn150-Ф159mm, dn200-Ф 219mm.
Dn 250-Ф 273mm, DN 300-Ф 325mm
Dn 350-Ф 377mm, DN 400-Ф 426mm
Dn450-Ф 480mm, Dn500-Ф 530mm
The outer diameter of a pipe made of seamless steel pipe is indicated by the letter D, followed by the size and wall thickness of the outer diameter, for example, a seamless steel pipe with an outer diameter of 108 and a wall thickness of 5 mm ..