Drip irrigation is one of the most water - efficient hydration systems used for plants . count on drip irrigation current is easy and will tell you how much water flow rate is require for your irrigation organization . The drip - irrigation flow rate rate will also rent you know whether you have adequate tube and valves for the number of emitter and menses rate in each section of the organization . With a simple mathematical formula , you could aim the drip - irrigation flow rate for your entire organisation or a single section or zone .
Step 1
weigh the bit of emitters in your drip irrigation arrangement . Identify the period rate of each emitter , which is measured in gallons per hour ( GPH ) . If some of your emitter have a unlike current rate than others , mark down the issue of emitters belong to each flow pace .
Step 2
procreate the number of emitter by the GPH to get your total dripping irrigation flow rate , if all your emitters have the same GPH charge per unit . For illustration , if you have 20 emitters that all have a flow charge per unit of 2 GPH , your entire drip irrigation flow rate rate is 40 GPH ( 20 emitters x 2 GPH = 40 total GPH ) .
Step 3
Multiply the issue of emitters by their several flow rates and bestow the result together , if some of your emitters have different stream rates in your drip irrigation organisation . For instance , if you have 10 emitters with a flow charge per unit of 2 GPH ( 10 emitter x 2 GPH = 20 GPH ) and 10 emitter with a menstruum pace of 1 GPH ( 10 emitters x 1 GPH = 10 GPH ) , your full GPH for the intact drip irrigation system would be 30 GPH ( 20 GPH + 10 GPH = 30 total GPH ) .
Step 4
Break down the entire GPH calculation to decide the gallons per minute ( GPM ) . but divide your entire GPH by 60 to get your GPM pace ( GPH / 60 = GPM ) . For model , if your full GPH is 30 , your GPM rate would be 0.5 ( 30 GPH / 60 = 0.5 GPM ) .
Tip
you may use your GPH and GPM calculations to determine the amount of water usage for your entire irrigated area . For best execution , see that you ’re using emitters with the appropriate flow pace for each eccentric of plant life . For example , flowers and vegetables usually want a dripper with a flow pace of 1 GPH , while small tree and intermediate - sized shrub will involve emitter with a 2 GPH flow rate .
Warning
Do n’t outgo a flow rate of 220 GPH for a single section of ½-inch poly tube in your trickle irrigation system . Also , do n’t exceed a 9 GPM catamenia charge per unit for a ¾-inch tube in a single zone or from a single valve .
