a water sprinkler includes a base defining a first cavity and an outflow opening , a conduit assembly positioned in said first cavity and defining a first channel and a second channel , and said first channel defining a first channel inlet and a first channel outlet , and further said second channel defining a second channel inlet and a second channel outlet , and a timer mechanism having a timer inlet and a timer outlet , said timer mechanism being configured to operate in a first mode in which fluid is allowed to pass between said timer inlet and said timer outlet , and a second mode in which fluid is prevented from passing between said timer inlet and said timer outlet , wherein said first channel outlet is positioned in fluid communication with said timer inlet , wherein said second channel inlet is positioned in fluid communication with said timer outlet , and wherein said base and said conduit assembly are configured so that fluid advancing through the water sprinkler must pass through both said second channel outlet , and said outflow opening .