[[Image:Kari drum icon.png|right|100px80px|]][[Image:KARI drum.jpg|thumb|right|300px200px|Layout of a drum system adapted from Chapin’s bucket kit. Drawing: [http://www.samsamwater.com/library.php?serie=RELMA%20Technical%20Handbook%20Series RELMA.]]]__NOTOC__<small-title />
This is a variation of the [[Chapin]] bucket kit and involves using a drum of about 200-litre capacity or the equivalent of five bucket drip irrigation systems. The development of this adaptation is credited to a farmer in Eldoret in the Rift Valley Province of Kenya who, after working with the bucket drip kits, connected an old drum to supply four drip lines. KARI improved on the drum adaptation by designing the manifold with 4 or 5 openings each serving two drip lines.
Six examples are presented: the KARI drum system from Kenya, the Waggon Wheel system from South Africa, the Family, Plastro and Micro-Tal systems from Israel, and the IDE drum used in India.
===Construction, operations and maintenance===
The standard drum kit system comprises a drum, control valve, a manifold and drip lines. The drum should be filled with the valve in the closed position. To irrigate it is important to open the valve fully. This allows the water to be distributed quickly through the drip lines and allows for good water distribution.
# Finally, connect one end of the connector tubing to the filter plug and insert the barb fitting to the other end. Connect the drip tube to the drip lock fitting.
===Costs===
To install a drum system costs about KSh7,500 (US$100) in Kenya.
===Acknowledgements===
* Sijali, Isaya V. [http://www.samsamwater.com/library.php?serie=RELMA%20Technical%20Handbook%20Series DRIP IRRIGATION: Options for smallholder farmers in eastern and southern Africa.] RELMA, 2001.