Sprinkler heads across a lawn blowing a fine mist of water and compressed air during a fall sprinkler blowout

Sprinkler Blowouts

Sprinkler Blowouts in Spokane, WA and Surrounding Areas

Best of 2026 Award Winner badge for MKB Lawncare LLC

Google Best of 2026 Award Winner for Landscaping

Mini excavator digging a trench for a sprinkler system

Fall Winterizing

When to Schedule a Sprinkler Blowout in Spokane

MKB Lawn Care LLC is a sprinkler and irrigation company serving Spokane, Washington. We clear every zone with a commercial compressor so nothing is left sitting in the lines when the ground freezes.

Our winterizing season starts in late September and ends at the first hard freeze. We work out from Davenport and the schedule fills from the top down, so book early if your system has a lot of zones or runs off a pump — those take longer and we plan the route around them.

Eastern Washington usually takes its first hard freeze sometime in October, and that is the deadline that matters. If you have not booked by the first week of the month, call anyway and we will tell you honestly whether we can still fit you in.

Get On the Schedule

How We Blow Out a Sprinkler System

Zone by zone, watching each head, so the water leaves and the hardware does not get chewed up doing it.

  1. Shut off and drain the supply

    We close the main valve to the system and open the drain, so most of the water is gone before any air goes in.

  2. Air through one zone at a time

    The compressor runs a single zone at a time. Each head gets enough air to push the water out and no more, because dry-running a rotor is how you ruin the gear drive inside it.

  3. Check every head, then close it up

    We watch a zone until it is blowing dry mist, move to the next, and when the last one is clear we shut the system down and set the controller for winter.

Get A Quote

Why Skipping a Blowout Cracks Pipes

Water expands by about nine percent when it freezes, and in a buried lateral there is nowhere for it to go. The pipe splits, or the crack turns up in a valve body or the backflow assembly where the repair gets expensive fast.

The damage almost never announces itself in winter. You find it in April, when a zone comes up as a fountain instead of a spray pattern and a section of lawn has already gone soft. A blowout costs a small fraction of digging a lateral back up in the spring.

Sprinkler Blowouts at the Lincoln County Courthouse

Some of the systems we winterize are ones people in this part of the state walk past every day.

Sprinkler watering the front lawn of the Lincoln County Courthouse in Davenport, WA
The open turf in front of the Lincoln County Courthouse in Davenport — long-throw rotors that need a longer run of air to clear.
Short-throw sprinkler head running in a narrow planting strip beside a building foundation
The narrow strip along the foundation nearby — short-throw nozzles that clear in seconds and are easy to over-run.

Those two photos are the whole argument for doing a blowout head by head instead of opening every valve and walking away. A wide lawn full of rotors and a foundation strip full of spray heads empty at completely different rates. The same crew and the same compressor run the route into Spokane.

Areas We Cover for Sprinkler Blowouts

Fall is a routing problem more than anything else. We group the work so the truck and compressor stay in one area for the day, which is why booking early gets you a better slot.

Spokane

We run the city in blocks, so a street gets done in a morning rather than one house at a time across three weeks. If a neighbor wants theirs done while we are there, mention it when you book and we will put the two back to back. We cover landscaping and irrigation in Spokane the rest of the year too.

Spokane Valley

The Valley goes on the same run. Larger lots out this way often have eight or ten zones plus a separate line feeding a shop or a garden, so tell us about the extra line when you call and we will bring the fittings for it.

The US-2 Corridor

The towns strung along US-2 sit on the drive we are already making between home and the city. If your property is on that stretch we can usually add it to a day the truck is already heading your way, which means a shorter wait for a slot.

Need repairs before the system goes to sleep?

Irrigation & Sprinkler Repair

Lawn Care Experts in Davenport

Book a Sprinkler Blowout in Spokane

Tell us roughly how many zones you have and where the property sits, and we will put you on the route. Send a request through the form or call 509-496-3439.

Book a Blowout