I'm stuck in TDD and need serious help in the cistern!!!

[BajaBlast213]

I got a flash but i dont remember the jingle, when i placed the pipes they kinda just flew into the slots like a magnet, can i take the pipes off the wall and re do them? And no nothing happens to the bridge when i pull the lever, i looked at a guide and stuff but it didnt say which pipe goes in which hole they just fit i guess, however when i did the weights i got the blue flash but the weights are different on the guide so i dont know if im wrong or the guide is wrong