Vital Pipes

Hey, I'd like to play this. What should I do? Please.

A fun game that I got bored with pretty quickly, because as early as the third level, I was unexpectedly stumped by the fact that the pipeline I’d almost finished building suddenly started dismantling itself, so I couldn’t complete the level. I would have expected the goal to be building the pipeline as quickly as possible and scoring as many points as possible without any additional complications, such as this sudden automatic disassembly.