A&A MagnaSweep is a series of nearly invisible pop-up cleaning heads built into the floor and steps of the pool and spa. As part of your pool's circulation system, MagnaSweep requires no extra pump or extra electicity. Clean, filtered water is returned to your pool through the A&A MagnaSweep Water Valve which automatically and hydraulically directs the flow to a series of A&A MagnaSweep Pop-Up Cleaning Heads that raise in pre-programmed directions at timed systematic levels. Filtered water then flows through the activated cleaning heads as powerful jets of water, sweeping dirt and debris into suspension so it can be removed through the skimmer and main drain. (LeafVac, A&A MagnaSweep's optional dual main drain system, will remove leaves and other heavy debris to a convenient canister in the deck.) The series of cleaning heads begin returning flush to the pool floor as the next series of heads pop up to continue cleaning while circulating filtered water throughout the pool.