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Consistent sand moisture creates the best bunkers

Our proprietary Capillary Material makes it possible to have a bunker liner that rapidly drain while also retaining adequate sand moisture, creating the perfect playing conditions in golf course bunkers.

15 year performance guarantee
Increased sand lifespan
Big Cedar Lodge, Top of the Rock, Ridgedale, Missouri

Big Cedar Lodge, Missouri

Perfect bunkers, satisified golfers

Capillary Bunker liners for golf courses have been installed in over 1000 venues across the globe to the delight of golfers around the world.

Improved course profile
Helps attract competitions and better players
Decreased maintenance
Beautiful even after a storm
Consistent performance
Freedom of design

Have your architectural vision come to life

A bunker edge that can mold to any curve or shape and a bunker base that can be built on any ground type brings a new kind of design freedom to your course construction

Capillary Edge by CapillaryFlow
CapillaryFlow solutions are easy to install

Quick and easy installation, all year round

Our golf course bunker liners is easy to install and bunkers can be filled with sand and be ready to use already after 24h

Complete moisture and drainage control to keep golf course bunkers in perfect shape during any weather condition. Capillary Bunkers...




Soil contamination

Inconsistent moisture levels

Plugged ball lies

The need to replace sand due to contamination

Excessive maintenance


Beautiful bunkers

Consistent performance

Improved playability

Pristine bunker sand

Maintained design integrity

Extended sand life

CapillaryFlow Bunker Liners

Pristine bunker sand

Patent Pending wash box

The only bunker liner with the possibility to wash the sand

Capillary Edge by CapillaryFlow

Capillary Edge

Create a beautiful, permanent edge that will eliminate sand contamination from exposed soil edges.

Capillary Geothermal
Geothermal heating icon


Extend the season with intrinsic underground heating

Durability and performance, guaranteed.

Capillary Bunker Liners

Can handle 1000psi of pressure

Takes care of any amount of precipitation

Performance is unaffected in any climate

Is the only bunker liner with 15-year performance guarantee

Increase bunker sand lifecycle

Decreased cost of maintenance sets you up for long-term success

Without Capillary Bunkers

Full raking several times a week

Sand migrates on precipitation

Need to change bunker sand every three years

Water sits in bunker floor

With Capillary Bunkers

Spot raking once in a while

No sand migration from bunker faces

Wash the bunker sand to new once a year

Consistent and well drained bunker floors makes bunker playable within an hour

How it works


A durable edge

Easy and quick installation of a bunker edge that is durable and moldable to any shape.


Wash your bunker sand to new

Our patented Capillary Wash Box lets you wash the bunker sand occasionally, making it new in a breeze.


Maximize the life of your sand

White sand with the right moisture and drainage capacity to keep your bunkers mint and in the original sand color through its entire lifecycle


Any subgrade layer

Just the right sand depth in accordance with the soil moisture release curve.


Converging drainage and moisture control

The proprietary CapillaryFlow material makes it possible to rapidly drain water while also moving it up in dryer conditions, meaning no more sitting water or drought bunker bases.


Drainage gravel and pipes in tandem

Use any recommended drainage gravel together with drainage pipes.


Built from the ground up

With the right preparations any of our technologies can be used on any ground material.


Our customers love us

Whitecraigs Golf Club

Whitecraigs Golf Club

Not a brilliant morning weather wise, but delighted at how the course has held up to an inch of rain since we left yesterday.  Greens drainage and capillary concrete bunkers are performing well.

Headland Golf Club

Ben Tilley

When 38mm “floggs down” overnight & 55mm over 3 days & then you come in to find your decision making, choices of product and planning have been vindicated 😎😎😎

Clearwater Bay Golf & Country Club

Peter Downie

Clearwater Bay Hong Kong after Super Typhoon I rest my case for Ecobunker & Cappilary Concrete use 👍👏👏

Ayla Golf Club

Atilla Demisroy

“Keeping the white silica bunker sand and the orange/brown desert sand separate is essential if bunker performance is to be maintained, and this requires a quality liner. We need separation to keep the integrity of our bunkers. CapillaryFlow was the only option to fix this”

Oakwing Golf Club

Kyle Swart

“Before we started, around fifty per cent of our bunkers simply didn’t drain,” he says. “In the first three months after we renovated, we had 22 inches of rain–we went from an incredibly dry summer to an incredibly wet winter. There is not a bunker out there that has held water or washed out, or retained any silt. They have been the best addition to this golf course.

We are going to save $50-70,000 a year just on labour from the new bunkers, and there will be another $12-15,000 from not having to replace sand. For us, that is a big, big difference.

St. Joseph CC

Wyatt Burnett

In case you wanted to see capillary concrete vs 17 year old bunker solutions. It nots a fair fight at all! These bunkers are about 100 yards apart. #capilaryconcrete

Clearwater Bay Golf

Peter John Downie

After 250mm of rain, no washout, no nothing. The Bunkers we didn't redo, a complete mess. Washed out, right down to the sand mat, completely depressing for the staff. After this, we will redo all our bunkers with Capillary

Knightsbrook Golf Resort

if every bunker in the golf course had Capillary, it would make life so much easier.

Newnan Country Club

Andy Scott

We’ve had three big rainstorms – three inches overnight – since we finished the installation, and we have come in the following morning and found little or no washouts in our new bunkers,” says Scott. “Member reaction has been great. I’m getting compliments every single day about how they look and play. It’s probably too early to say this is the best decision of my life, but I’m pretty close to it.

The Club at Gettysvue

Jeff Dudych

During my travels I’ve seen all the liners and from talking to my colleagues, it was clear that the Capillary Bunkers stood up the best.

Wakefield Plantation Country Club

Todd Lawrence

I like the fact that the concrete is a homogenous two inch layer. Other products seemed to depend much more on the contractor to get the consistency and depth of the product right. With Capillary Bunkers, I knew that as long as it came out of the truck properly mixed, it would give me that solid two inch layer.

Sarabay Country Club

Carlyle Merring

We had ten inches of rain over the course of thirty days in June, and seven of those inches came down in two days,” says golf course superintendent Carlyle Merring. “The bunkers stood up to it really well. We don’t have a problem with them washing out. The integrity of the product is holding strong – not failing in any sort of way, and the bunkers are functioning really well. Generally we can get our bunkers back in play in one morning after a big rain event.

Kinderlou Forest Golf Club

Heath Allen

We want to do this one time and not have to worry about going back in to replace anything. And the Capillary sytem is very easy to install – there are very few restrictions about suitable weather, or time of day, and so on.

Cuscowilla Country Club

Jarrod Clark

After 20 years of weathering and maintenance our bunkers were in need of renovation. We have a natural style of bunkering and wanted to keep that look intact while installing new sand and drainage. Using Capillary Concrete on our steep faces allowed us to stabilize and drain the bunkers while keeping the design and look intact. We have experienced less washouts and better playability since the Capillary Concrete installation. Our members have been very happy with the consistency of the new bunkers that are now playable sooner after heavy rainfall

Flying Horse Club

Phil Smith

I have had great experiences with Capillary Concrete, so it was an easy decision for this project. I have found the Capillary Concrete to deliver very good results in terms of sand quality, and the easy of installation just closes the deal as far as i’m concerned. I really can’t say enough about it.

Gamle Fredrikstad Golfklubb

Agne Strom

I dug up the sand today in one of our bunkers. I am turning it into a chipping area by green #7. After 3 trouble-free seasons and 2 winters I can testify of zero damage to my Capillary Concrete. I strongly recommend this product.

Never a wash-out. I spend about 10 hours per week on my 45 bunkers

University of Texas Golf Club

Tyler Andersen

As a staff, we needed to find a way to retain moisture in the faces of the bunkers so golf shots would hit and release to the bottoms of the bunker.

The Preserve Golf Club

Steven Miles

All of our bunkers were completely redone with Capillary Concrete back in 2014. We got 100 inches of rain the last 2 years and for the last 4 to 5 years we have not had to replace any sand. We have less labor fixing washouts… we have to rake our bunkers fewer times… so it saves us a substantial amount of money for labor.

We have not had to repair our bunkers at all, and, incredibly, the original sand is still in them,” Miles says. “Since 2014, I have bought one truckload of sand, and that was for the bunker in our chipping green – which gets blasted out by players. Our bunkers have flashed sand faces, but our minimal washout issues only occur where water actually flows into the bunkers. When we get a big rain – and eight to ten inches of rain is not uncommon – we have to wait for the drainage infrastructure underneath the bunkers to catch up with the bunkers’ ability to move water. But it always does, and then the crew can prepare the bunkers for play again.

Avondale Golf Club

David Warwick

We have recently made the huge decision to renovate all the bunkers at Avondale Golf Club, utilizing Capillary Concrete™ as the primary bunker liner and the patent pending drip line irrigation technique on the steeper faces. We are extremely impressed with the effectiveness of the product.

Palmetto Golf Club

Brooks Blackburn

It’s been a game changer for us.

Mount Vintage Golf Club

Rodney Crow

Since installing Capillary Bunkers, we are seeing superior conditions, the moisture levels seem to be staying right where we need them — never too dry or too wet — and our members have absolutely raved about them. The difference between our Capillary Bunkers and the ones we haven’t renovated yet is night and day.

Le Golf National, Paris, France

Alejando Reyes

We have selected Capillary Bunkers with special Light Weight Aggregates based on the outstanding performance and strength of the material. After several tests and on site evaluations, it is the best adapted product to our renovation project in order to produce a world class golf venue

Build your next generation golf course with CapillaryFlow

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