Maximum Run Length & Maximum Gallons Per Hour (GPH) Tubing Size Maximum Run Length Maximum GPH Supplied 1/4″ 30 feet 30 GPH 1/2″ 200 feet 200 GPH 3/4″ 480 feet 480 GPH 1″ 960 feet 960 GPH Click to see full answer. People also ask, how long can you run a drip line?LENGTH OF RUN LIMITS: ½ inch tubing can run up to 200 linear ft. ¼ inch tubing should not exceed 19 ft in length. MAXIMUM FLOW CAPACITY: ½ tubing can handle a maximum of 240 GPH or 4 GPM.Additionally, how many emitters can I put on a drip line? It is best to check manufacturers’ specifications. How many emitters can be put on one line? That depends on the capacity of your line and the flow rate of each emitter. 1/2″ tubing can carry up to 240 GPH, and 3/4″ tubing can carry up to 480 GPH. Besides, how much drip line do I need? A typical drip irrigation system needs about 25 pounds per square inch (psi) of water pressure to function optimally, but many emitters rated at 25 psi will work well at pressures as low as 15 psi. The flow output will be slightly less than at 25 psi but any difference can be made up with longer watering times.How do you run a drip line? How to Install a Drip Irrigation System in Your Yard Step 1: Overview of drip system. Step 2: Make a sketch and plan the drip irrigation system. Step 3: Begin at the outside faucet. Step 4: Lay the 1/2-in. Step 5: Connect the emitters. Step 6: Drippers, bubblers, sprinklers and sprayers.