Spring sprinkler startup in Holly, MIWait out the freeze, then turn it on.
Around Holly the last hard freeze usually passes in late April and the last frost by early May. Misty's brings the water up slowly, runs and checks every zone, and sets the controller for the soil and slope you actually have.
- 5.0 on Google, 40 reviews
- Last hard freeze: late April
- Every zone run and checked
- Controller set for your soil
Illustration
Spring startup in Holly
What a Holly startup has to account for.
Turning the water on is the easy part. The point of a startup is to catch winter damage before it wastes a summer of water, and to set a schedule for the ground and the water supply this particular yard has.
Timing the last freeze
At the NOAA stations ringing Holly, the median last 28 degree night falls between April 22 and 28, and the last 32 degree night between May 1 and 10. The part most exposed to a late freeze is the backflow device above ground, so we start once the hard freezes are past.
Loam, sand and slope
The township's master plan maps mostly loamy Marlette and Capac soils, with sandy Oshtemo ground and mucky low spots mixed in, all on hilly glacial land. Loam soaks water in slowly; sand drinks fast and dries fast. On a slope we split long runs into short cycles so water soaks in instead of running off.
Iron and the first spray
Oakland County's health division lists iron among the things that change how well water looks, and its lab's basic chemistry panel does not include it. At startup we aim every head off siding, fences and walks, so the iron lands on grass. For stains already there, see Rid-O-Rust.
Sharing the well
Most township homes water from a private well, so the sprinklers and the house share one pump. We watch the pressure as each zone runs, then set start times that stay out of the way of morning showers and laundry.

What you get
A spring startup, in order.
Every startup follows the same order, so the system fills without a jolt and anything the winter broke is found on the first day, not in July.
- Backflow device opened right
Test cocks and drains closed, ball valves opened slowly, the device checked for freeze cracks.
- Water on slowly
The main line filled a little at a time, with the air let out through the heads.
- Every zone run
Each zone run and walked, not just switched on at the controller.
- Heads adjusted
Clogged nozzles cleaned, sunk heads raised, tilted heads straightened and aimed.
- Leaks found
Wet spots, weak zones and split fittings found and explained before any repair.
- Controller set
Date and time set, backup battery checked, and a spring run time for each zone.
Try it
Where the season is.
Startups run once the hard freezes are over. The line below moves with the date and says what to book now.
- Spring startups
- Watering season
- Fall blowouts
Blowout season.
Get the water out before the ground freezes. A missed blowout shows up in spring as cracked pipes and a split backflow device.
In Holly
Booking a Holly startup.
Startups run from about mid April through May. Text (810) 423-9513 with your address and your water source, and we will set a time. Leave the irrigation valve closed until we arrive. We open it slowly, because a valve thrown wide open sends a slug of water through empty pipe that can crack fittings.
On the visit we open the supply, fill the lines, run each zone in turn and look at every head. Broken heads, leaks and stuck valves get pointed out on the spot, and the controller gets a schedule built for this spring instead of last year's.
- Last hard freeze
- April 22 to 28, typically
- Last spring frost
- May 1 to 10, typically
- Startup window
- Mid April through May
- From Fenton
- About 15 minutes
5.0
From 40 reviews on Google.
What people mention most
- Promptness6
- Reasonable pricing5
- Sprinkler repair3
- Winterization3
- Leak repair2
- Hardworking staff2
Misty’s Irrigation came out to repair and inspect our lawn irrigation system and did a great job. Very knowledgeable, professional, and just great people to work with. It’s always nice being able to support a local Fenton business, especially when they provide this kind of service. Highly recommend!
Quick to respond to phone message. Scheduled service call and took great care of my sprinkler system, replacing 2 sprinkler heads and checked all of the others. I highly recommended this company for their services
Questions
What people ask about spring startup in Holly.
If yours is not here, call or text (810) 423-9513.
When is the right time for a sprinkler startup in Holly?
Late April into May. Misty's runs startups from about mid April through May, and around here the last hard freeze usually passes by the end of April. Starting much earlier gains little: the system then sits charged with water through any late cold snap. Call or text (810) 423-9513 to get on the list.
How long should each zone run on this kind of soil?
Aim for about an inch of water a week in summer, rain included. Spray heads put down about 1.5 inches an hour, so roughly 40 minutes a week per zone, split over three days. Rotors put down about half an inch an hour, so closer to two hours a week. On a slope or on heavier loam, split each run into two shorter cycles. More in the watering guide.
My well water leaves orange marks on the house. Can a startup help?
Partly. Aiming heads so they stop hitting the house, walks and fence keeps new stains down. It does not take the iron out of the water. A Rid-O-Rust treatment added to the system keeps the iron from staining whatever the water lands on.
The system was fine last fall. What can go wrong over a Holly winter?
Frost heaves the ground and tips heads out of level. A pocket of water missed in the blowout can crack a fitting. Plows and shovels clip heads along the drive, and a controller can lose its program after a power outage. A startup is when we catch all of that, before it shows up as a brown patch in July.
More in Holly
Book service
Book spring startup in Holly.
Send it here or call. We will call back, ask a couple of questions so the right parts are on the truck, and give you a time.
- A real person calls you back. Promptness is what reviewers mention most.
- Fair, clear pricing. That is the second thing they mention.
- Licensed and insured, family run out of Fenton.


