carlscan26: yes, according to my understanding (which may be wrong) there will be two sets of returns - one in the bottom of the pool and the second just under the waterline. When the automatic safety cover is active(covering the pool), the returns on the bottom of the pool are used and this allows the warm water returning from the solar panels/heat pump to mix with the colder water which normally is at the lowest point in a pool (especially as the cover will be increasing temperature of water at the top of the pool). When the pool is in use, and cover is open, the surface returns are used to create a strong flow of water around the pool and ensure that anything floating on the top of the pool reaches the skimmer. My understanding is that the intellitouch automation somehow enables this to happen seamlessly.