A variety of systems are used to get the captured rainwater to the ultimate use areas.  Gravity systems are the simplest of the delivery methods, but lack enough pressure for most applications.  Portable and submersible pumps of various sizes are available to achieve the desired water volume and pressure needed for your particular application.  Pump controllers and other equipment are available to help analyze cistern water levels, water uses, etc.  We supply complete systems to meet most any needs, large and small.