How to plug a cracked plastic hose?

First of all, confirm the specific material of the plastic water pipe you mentioned;

At present, the main plastic pipes for civil use are PPR (water supply/drinking water); PVC (polyethylene) (used for drainage/rainwater) are mainly the above two types, so I won't say much about other types.

Second, please buy the corresponding accessories;

If it is a pipe opening, you need to buy a section of pipe and pipe fittings at the adjacent ends; If the pipe fittings are cracked, you only need to buy the corresponding pipe fittings, and pay attention to buying the correct product specifications.

Third, close the valve/stop the drainage, and carry out construction replacement;

If the water supply/drinking water pipeline is used, cut off the cracked part with special scissors, leaving enough space (about 2 cm), and then connect it with a special fuser. If you use a silk nipple, please buy another raw material belt to prevent water leakage.

If it is a drainage/rainwater pipe, the gap in the middle can be sawed off with a hacksaw to leave enough space (about 2 cm). Wipe the purchased pipe fittings and pipes clean, evenly apply special PVC glue, and then connect them.

It is suggested to buy products from the same manufacturer and products from big manufacturers as much as possible, such as plastic pipe products from big brands like Wei Xing and Sorbonne.

In view of the strong professionalism, it is better to contact the property to have a look, which is also conducive to your future maintenance. At this time, the property shall be jointly and severally liable for the secondary losses caused by property operation and other reasons.

I hope I can help you!