If the Polaris vacuum is failing to move correctly, fixing the problem is often just a matter of adjusting the thrust jet. For example, if the vacuum fails to climb out of the deep end into the shallow end of the pool, the thrust jet can be adjusted to give it more lift; or if it tries to climb the sides of the pool, the jet can be adjusted the other way to keep it on the bottom. Some adjustment Instruction as following: Pointing the jet higher causes the Polaris to climb easier; Pointing the jet lower increases how firmly the Polaris hugs the bottom; Moving the jet left moves the Polaris left; Moving the jet right moves the Polaris to the righ.