The Hydraulic Ram Pump is a Water Pump that does not need fuel or electricity to operate. Only flowing and falling water is needed. These pumps are kits designed to be assembled by you. Teflon tape is included for the assembly however the PVC cement is not included.  After your pump has been assembled you will need to install a drive pipe and delivery pipe to get the pump going.  All Pumps require a minimum input head pressure (water drop from source to pump) of 2.5 feet. What size pump is right for you?  There are four sizes of Ram Pumps. The difference in size is the amount of water required to operate the pump and the expected output at the top. Each size Ram Pump can lift to the same height. This works on a 1:7 ratio of input head pressure to lift. For every additional 1 foot of head pressure going into the pump you can expect 7 feet of lift out the delivery pipe.   The Ram Pump needs these minimum water flow rates depending on pump size: 1/2"    =    2gpm input - up to 300gpd output. 3/4"    =    4gpm input - up to 600gpd output.  1"        =    6gpm input - up to 1000gpd output. 1-1/4"   =    8gpm input - up to 1400gpd output. ------------------------------------ All Components used in the Ram Pump are Lead Free. 4 Steps to Buying a Ram Pump 1. Determine your Water Flow Rate. The ram pump needs flowing water to operate. The amount of water that you have available in the creek, determines the size Ram Pump that you can use. Here are the flow rate specs for each size of ram pump available on Land To House: 1/2″ Ram Pump 2gpm(7.6Lpm)3/4″ Ram Pump 4gpm(15Lpm)1″ Ram Pump 6gpm(22.7Lpm)1-1/4″ Ram Pump 8gpm(30.3Lpm) The Ram Pump will consume the minimum flow rate. during normal operation. This amount of water is going to be used regardless if more water is available in the creek. How to measure flow rate? Fill a 5 gallon bucket from the water source and time how many seconds it takes to fill.  Divide 300 by the seconds calculated and you will have the Gallons per Mi