The invention is directed to a chlorinator mounted inline in a water
purification system having a housing having an inlet end and an outlet
end and an upper compartment having an electronics section with a
controller unit contained within the electronics section and in
electrical communication with a power source and an at least one
electrolytic plate. The system having a heat sink member in thermal
communication with the controller, wherein the flow of the water in the
water purification system cools the heat sink member and the controller
unit.