can you change any of the drainage pipes after you close them? i haven't been able to.
if you can, please tell me how.
thanks
Nita

I'm not sure what pipes these are? There's a lot of pipes :)

Late reply... I recently finished the game and one thing that struck me was that Cyan deviated a bit from maybe one of their most "sacred" game design principles with this game. In some instances actions can't be undone, even in cases where there seem to be no logical reason as to why not. The pipes I think you're referring to is one example of this.

Made me feel the game was not quite fully polished yet (patch 6). Really loved the game though. Almost perfect.

Edit: Sorry; just realised you had recieved an official answer to this in another thread.