“Should I Add More Zones… or Fix What I Already Have?”
After 42 years in this business, serving homeowners across Maryland, DC, and Northern Virginia, I can tell you something with complete confidence:
👉 This is one of the most misunderstood irrigation questions out there.
And if you get the answer wrong?
👉 You don’t just waste money… you make the problem worse.
At TLC Incorporated, we’ve worked on thousands of irrigation systems, and with over 600 reviews and a 4.8 rating, we’ve seen just about every scenario you can imagine.
So let’s break this down the right way.
The Situation Most Homeowners Are Dealing With
If you’re asking this question, your lawn probably looks something like this:
- Dry spots that never seem to recover
- Areas that stay wet or even muddy
- Inconsistent color across the yard
- A system that “runs”… but doesn’t perform
And naturally, the thought is:
👉 “I probably just need more zones.”
But here’s the truth:
👉 Most of the time, that’s not the real problem.
The Real Issue: Distribution vs. Capacity
Every irrigation issue falls into one of two categories.
1. Distribution Problems
This means water is not being applied correctly.
- Too much in some areas
- Not enough in others
👉 This is a design or adjustment issue.
2. Capacity Problems
This means the system physically cannot handle the load.
- Too many heads per zone
- Pressure drops during operation
👉 This is where adding zones MAY be necessary.
👉 The biggest mistake homeowners make is confusing these two.
What Adding Zones Actually Does
When you add zones, you are:
- Splitting the workload
- Reducing the number of heads running at once
- Improving pressure per zone
👉 This can absolutely improve performance.
But only if pressure and capacity are the real issue.
What Adjusting Coverage Actually Means
Adjusting coverage is about fixing how water is applied.
That includes:
- Repositioning heads
- Correcting spray angles
- Matching nozzle types
- Fixing spacing
- Eliminating overlap
👉 This is where most problems are actually solved.
Why Homeowners Jump to Adding Zones
Because it feels like an upgrade.
More zones = more control… right?
Sometimes.
But often?
👉 It’s solving the wrong problem.
When Adjusting Coverage Is the Right Move
In our experience at TLC, this is the answer in the majority of cases.
1. Heads Are Misaligned
If water is hitting:
- Sidewalks
- Driveways
- Fences or siding
👉 That’s not a zone issue.
👉 That’s alignment.
2. Coverage Is Uneven
If you have dry and wet areas at the same time:
👉 That’s distribution.
3. Wrong Nozzles Are Installed
Different nozzles deliver different amounts of water.
If they’re mismatched:
👉 You get inconsistent results.
4. Head Spacing Is Incorrect
If heads are too far apart—or too close—
👉 Coverage breaks down.
5. System Was Never Designed Properly
This is extremely common.
Many systems were installed without proper planning.
👉 And that leads to long-term inefficiency.
When Adding Zones Is the Right Call
Now let’s be clear.
There ARE situations where adding zones is absolutely the right move.
1. Too Many Heads on One Zone
If a zone is overloaded:
- Pressure drops
- Heads don’t perform correctly
👉 Splitting the zone fixes this.
2. Low Water Pressure
If your system cannot maintain pressure:
👉 Additional zones may be required.
3. Property Has Changed
If you’ve added:
- Lawn areas
- Landscaping
👉 Your system may need to expand.
4. Full System Redesign
If you’re already reworking everything:
👉 Adding zones may be part of the solution.
A Real Story From the Field
We had a homeowner who was convinced they needed two new zones.
They had:
- Dry patches in the front yard
- Soggy areas in the back
They assumed the system was overloaded.
But when we evaluated it, we found:
- Heads pointed incorrectly
- Mismatched nozzles
- Poor spacing
We didn’t add a single zone.
We adjusted the system.
👉 The result?
- Even coverage
- Healthier lawn
- Lower water usage
What Happens When You Add Zones Too Soon
This is where homeowners get into trouble.
Adding zones when you don’t need them can:
- Increase system complexity
- Raise installation costs
- Create more maintenance points
And worst of all:
👉 It doesn’t solve the real problem.
The Cost Conversation
Adjusting Coverage
- Lower cost
- Faster results
- Often solves the issue
Adding Zones
- Higher investment
- More labor
- More complexity
👉 The smartest move is solving the correct problem first.
The Biggest Mistake Homeowners Make
Trying to fix a design problem with more equipment.
👉 That rarely works.
How to Know What You Actually Need
Ask yourself:
- Is water being applied unevenly?
- Are heads properly aligned?
- Is pressure consistent?
- Have I evaluated the system as a whole?
If the issue is distribution: 👉 Adjust coverage.
If the issue is capacity: 👉 Consider adding zones.
The Smart Approach (What We Recommend at TLC)
👉 Evaluate first
👉 Adjust second
👉 Add only if necessary
This prevents wasted money and ensures long-term results.
Why Experience Matters Here
After four decades in the field, here’s what we know:
👉 Most irrigation problems are not what they seem.
And if you don’t diagnose correctly:
👉 You fix the wrong thing.
That’s why homeowners trust TLC Incorporated.
FAQ
Will adding zones fix dry spots?
Only if the issue is pressure—not distribution.
Can too many zones cause problems?
Yes—more complexity and more maintenance.
Is adjusting coverage enough?
In many cases, yes.
Final Thought
If your lawn isn’t getting even coverage…
👉 Don’t assume you need more zones.
Because most of the time:
👉 You just need to fix what you already have.
And when you do?
👉 Everything works the way it should.
Need help figuring it out?
That’s what we’ve been doing for over 42 years at TLC Incorporated—helping homeowners across the DMV get systems that actually work.
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