PLANT!T Water TimerThe PLANT! T Water Timer is made for use with a tap attached. You can also use the product with a gravity feed system from a tank, reservoir, or water butt. The product is easy to program. Turn the RunTime dial to set the irrigation period and the Frequency Dial to set the period between the waterings. General Information The PLANT! T Water Timer is made for use with a tap attached; You can use the product with a gravity feed system from a water butt,