pumps in forest

[LeChucks Pizza]

Please put me out of my misery i am so stuck on the puzzle with the punps in the forest i've tried and looked at walkthroughs but i don't get what my target is, what i'm supposed to do all i know is that it has to alternate but how do you do that? Please help!

[James Isaac]

You have to get them in the right rhythm so that the ones on the left go at the same time, then the ones on the right go at the same time, then the ones on the left and so on.

You are trying to unbalance the tree.

[LeChucks Pizza]

thanx ive managed to do it now and i was doing great until i got to the lift in rudacava and finding the metal detector in the cat litter i used my sive ('scuse the spelling) on all parts of it but I can't find it!