Line the hole with 2 inches of gravel, then set the valve box into it. The box lid should be flush with the grass.
Next, following the manufacturer's directions, glue together the manifold and attach the zone valves. Set the manifold in the valve box.
Run 1-inch schedule 40 PVC pipe from the main water line to a backflow-prevention device and then connect it to the manifold.
Dig a shallow trench from the valve box to the location for the timer, according to your plan.
Lay the 24-volt underground wire in the trench and connect it to the wires leading from each valve.
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PVC pipe cutter
100-foot tape measure
rents for about $75 a day
Large adjustable pliers
for tightening threaded PVC fittings
for installing the wall-mounted timer
2. MARKER FLAGS
for marking sprinkler locations before trenching
3. FLEXIBLE PIPING
connects sprinklers to PVC pipe
4. 3/4-INCH AND 1-INCH PVC PIPE
5. ASSORTED PVC FITTINGS
6. GROUND STAKES
to secure drip-irrigation tubing
7. ASSORTED SPRAY NOZZLES
8. POP-UP SPRINKLER
9. PVC CEMENT AND PRIMER
10. ZONE VALVES
11. VALVE BOX
for housing the valves
12. BACKFLOW PREVENTION DEVICE
keeps irrigation water from flowing into home’s water supply
for spreading under the valve box
] 14. BARK MULCH
for covering the drip irrigation tubing