M & M PUMPS Inc. Unit 3 is a 1,600-gallon, truck-mounted, health-inspected unit that will deliver clean, potable water directly to a job site or home cistern In AB, Southeastern BC or Southwestern SK. In case of emergencies, such as a well problem or pump system that cannot be immediately repaired, M & M has a skid-mounted, all-weather enclosure with a 1,500-gallon storage tank and integrated pressure system. In addition, we have a summer emergency system utilizing a 1250 gallon storage tank.