Zone 1 1 nozzle replacement Zone 2 replaced 4” with 6” (1) Zone 5 single strand repair Zone6 zine strand repair Zone11 replaced 4” with. 6” (2) Zone 13 replaced 4” with 6” (3) Zone14/16/18 replaced 4” with 6”(6) All other zones looks good Drip repair zone 20