Produce a scale drawing of your property, together with plantings and different features. Send the drawing along with the results of Step 1 to your irrigation company. It’ll produce a system arrangement acceptable for your climate and needs, and will offer you with the parts plus tools necessary to install it. A few firms offer this service for free; others charge a modest fee. Run your pipe according to the plan. You do not have to dig a trench–you are able to use a motorized pipe puller to pull polyethylene pipe through the bottom with minimal disturbance. In this case, wrap the low-voltage zone valve control cable around the pipe plus pull it at the same time. 

If you dig a trench, either with a trench digger or manually, make it eight to 10 inches deep, Dig the main runs, then the branch lines. Connect your pipe to the household water source by running a copper pipe to the outside of the house at ground level. Install a ball valve and a backflow preventer between the supply and the outlet to ensure that no polluted water can get back into the supply from your lawn or plantings; this additionally allows you to shut off the source to irrigation system without shutting off the water to the house. Put a screw fitting on the outside end of the copper pipe plus begin your plastic pipe run there. If your system has multiple zones, assemble the valves and then connect them to the pipes below ground level. Wire the valves according to the manufacturer’s directions. Put a valve box over the zone valves plus fill round it with dirt. The box cover must be level or simply below the surface. Find out more about sprinkler systems here.

Connect the polyethylene pipe using barb fittings, securing the pipe with stainless-steel crimp rings. Put in brass drain valves if you’ll need to drain the system at the low points of the pipes. Dig holes of adequiate size to fit sprinkler heads plus to form connections from the pipe. If you are irrigating differing kinds of vegetation, your provider will probably have provided more than only 1 kind of head. Attach sprinkler heads using a 90-degree ell fitting, or if you would like drainage, a drainage ell. Attach the ell to the sprinkler head following the irrigation corporate’s instructions. Backfill round the heads, tamping the soil while you go. Use a mallet to make sure it is firm. Attach the cable for the zone valves to the controller box, always following the manufacturer’s instructions.