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Look what kind of material it's made of.
The drainage pipe is a cement pipe can be repaired with plain cement, and if it is PVC, it is glued with PVC glue, in short, the same material is used.
If it is a steel pipe, it can be repaired with electric welding, and if it is a PP-R pipe, it can be repaired with a quick coupling.
Go to the paint shop to buy water-based color fine-tuning and paint it, if you don't know how to paint, use the watercolor paint used for painting to adjust the color, and after painting and drying, you can buy a bottle of "Automatic Spray Paint (Varnish)" for eight yuan to spray it. If the wood is broken, use 502 and a little sawdust to make up for it, then polish it and then paint it.
The general kitchen ceiling is made of aluminum bolus, you can use a tool with a suction cup to suck it up, take it off for finishing, and then install it. If you really can't recover, you can replace it.
Big or small brushes? If it's about the size of a toothbrush, it's best to get it out, as it's very likely to be blocked.
Steel wool balls can be added with detergent or laundry detergent.