How-to guides
Irrigation and landscape lighting how-to guides
Short, step-by-step guides for the repairs and upgrades we answer every day, each with the parts we stock and ship.
- Manufacturer specs
- Parts in stock
- Free US shipping
- Photo help in Quote Center
Checked against manufacturer specifications and our live catalog · Updated October 2026
Sprinkler valve won’t shut off or turn on
Two tests that tell you solenoid, diaphragm, or valve.
Read the guide →
Which sprinkler nozzle do I need?
Radius, arc, thread, and pressure by nozzle family.
Read the guide →
How to winterize a sprinkler system
Blow-out pressure, air volume, and protecting the backflow.
Read the guide →
Convert a sprinkler zone to drip
Kits, dripline, and the GPH-to-GPM math.
Read the guide →
Replace halogen landscape bulbs with LED
Bases, beam codes, and transformer load.
Read the guide →
Where downspout and yard water should go
Basins, pop-up emitters, channel, and French drains.
Read the guide →
Which transformer do I need?
Load and wire-gauge calculator for low-voltage lighting.
Read the guide →
Hunter HPV discontinued
The PGV replacement for each HPV model.
Read the guide →Not sure which guide fits?
Send a photo of the part and what it is doing. We will tell you what to order. Free US shipping.
