So that such precedents do not happen, plastic pipes are covered with a small layer of aluminum. As a result, metal -plastic pipes are obtained. They are easy to bend, mechanically durable and practically do not change their shape when boiling water passes through them. If you fasten them with press-fings, or brew with a special machine, they can be easily mounted in the wall. This operation is not complicated, so it will cost less than the installation of steel pipes.
