What should I do if I want to block the circular tube wall after success?

1. Fill with concrete or bricks: this is the most common method. Fill one end of the pipe with concrete or bricks until the whole pipe is filled.

2. Install water stop: Installing water stop can prevent water from passing through the filler, so that the filler is not easily washed away, thus ensuring the firmness of the filler.

3. Install water stop: If the filler is not only water, but also other substances, such as soil or solid debris, then installing water stop can effectively prevent these substances from flowing through the filler, thus effectively preventing the filler from losing.