Millimeter pump ideal ideal for cleaning basements in case of flooding or when water collects on concrete surfaces etc. The Family series pumps the water to floor level - 1mm. The Family "Millimeter pump" can pump down to floor level. Even the smallest puddles can be pumped dry. Ideal for complete emptying of flat surfaces where a sump is not available: for cleaning tasks, basements, parking lots, garages, roads, swimming pools, etc.