READ MORE ABOUT MDI READ MORE ABOUT THE NEW MONOLITHIC DOME INSTITUTE GO TO MONOLITHIC.COM

Building a Pool at the Monolithic Research and Industrial Park

Chicken Fight in the Pool.

Chicken fights with my son Frankie in the finished pool. Those chickens are hard to keep above water—even without a skinny kid trying to push you off.

Mike South / Monolithic Commons / CC BY-SA 4.0

Everyone can agree, 2020 was quite a year. One exciting thing we did here at Monolithic was build our first swimming pool as a crew. My wife and I had been thinking of putting in a pool for years, and it was finally time to pull the trigger. We decided to situate the pool next to our Gazeedome that houses our outdoor kitchen and dining area and got to work on the design.

We put a lot of time and thought into the design and, because it was a smaller pool, I think I thought it was going to be easier than it was. I will tell you; it was a learning experience. Unlike shooting shotcrete on domes, a pool requires a lot of hand work and a lot more volume of concrete. When we started, we pulled out our big industrial Schwing concrete pump and sprayed a lot of material.

Javier and Jesse start spraying the first layer of shotcrete to the pool walls. A lot more shotcrete is used on pool walls than thin-shell concrete dome walls.

Mike South / Monolithic Commons / CC BY-SA 4.0

After that, we wanted some smaller batches so we could fill in around the hot tub and fine-tune different details. Unfortunately, we were having trouble with the concrete supplier not giving us the kind of concrete we wanted. So, we pulled out our mixer and little GHP 1500 peristaltic pump. I was pleased with how well that worked. Many pool contractors would be interested in a system like this, which was much smaller and a little more modular.

At one point, we had some rain that caved in a small portion of the hole for the pool and I was nervous about a second cave-in. I realized I should’ve immediately sprayed an inch of concrete on the whole thing as soon as we dug the hole. That would have given it that initial strength and resistance to the rain and flooding I needed. Come to find out; it would have worked perfectly, making a great little business in and of itself. If someone had one of our pumps and mixers, they could go out and flash the pools—give them one inch of concrete. They could mix it right on site, pump it with our small pump, and spray that pool in no time, which would make a great little business.

Original Design for the Pool.

Original design layout that my wife and I designed. We really labored over the hot tub and bubbler ledge, both of which were worth it.

Mike South / Monolithic Commons / CC BY-SA 4.0

The Rendering.

Rendering of the original design.

Mike South / Monolithic Commons / CC BY-SA 4.0

Future Site.

Site before we started construction. Note the blue water line that had to be moved from where the pool was going to be built.

Mike South / Monolithic Commons / CC BY-SA 4.0

South Kids Playing in the Hole.

Digging almost done, kids are all ready to get in.

Mike South / Monolithic Commons / CC BY-SA 4.0

Dirt Dug Out and Shaped.

Hot tube and bubbler ledge dig. It’s amazing how thick the concrete is on these elements—a lot more than we’re used to spraying in our thin shell domes.

Mike South / Monolithic Commons / CC BY-SA 4.0

Water and a Muddy Mess.

The good news is we didn’t hit rock. The bad news, it was worse than rock, it was sloppy mud. You couldn’t step down the bottom of this pool without sinking down to your knee.

Mike South / Monolithic Commons / CC BY-SA 4.0

Crushed Concrete.

A pile of crushed concrete I purchased to put down at the bottom of the pool to stabilize the slop that was the base of the pool.

Mike South / Monolithic Commons / CC BY-SA 4.0

Rain and Ground Water.

Rain and groundwater. Rebar is starting.

Mike South / Monolithic Commons / CC BY-SA 4.0

Ready for Shotcrete.

The rebar is done, the plumbing is in, ready to spray concrete.

Mike South / Monolithic Commons / CC BY-SA 4.0

Applying Shotcrete.

Javier starting to spray concrete

Mike South / Monolithic Commons / CC BY-SA 4.0

One More Layer.

The pool still needing one more layer of shotcrete.

Mike South / Monolithic Commons / CC BY-SA 4.0

Leveling the Waterfall Ledge.

Javier working on leveling the waterfall ledge from the hot tub into the pool.

Mike South / Monolithic Commons / CC BY-SA 4.0

Shotcrete Complete.

Aerial view of the pool with shotcrete finished and waiting for plumbing, tile and coping.

Mike South / Monolithic Commons / CC BY-SA 4.0

Plumbing Lines.

Filter and spa heater were installed behind the outdoor kitchen. It’s amazing the number of pipes that go into plumbing pools.

Mike South / Monolithic Commons / CC BY-SA 4.0

Large Propane Tank.

The underground propane tank connects to the hot tub heater, grill, and burner in the outdoor kitchen.

Mike South / Monolithic Commons / CC BY-SA 4.0

Tile and Coping Installed.

Tile and coping are installed and the pool is ready for plaster. I love the tile that Tessa picked out.

Mike South / Monolithic Commons / CC BY-SA 4.0

Professional Plasterwork Technicians.

Professional plasterwork technicians working in the pool. We hired out for the plasterwork. That is a serious job.

Mike South / Monolithic Commons / CC BY-SA 4.0

Plaster Finished.

Mikey South waiting impatiently for the pool to fill up! With the plaster done, the crew waits patiently for the water to fill the pool.

Mike South / Monolithic Commons / CC BY-SA 4.0

View of the Pool at Night.

The pool is lit up with bright green lights at night with the kitchen-dining area in the background. Color-changing lights are a fun add-on to the backyard scene. My family and our relatives use this little pool constantly. It’s a great addition to our lives down here.

Mike South / Monolithic Commons / CC BY-SA 4.0

Keeping up with the Domeses

Sign up for the monthly Monolithic Dome Roundup email newsletter for the latest news and links about innovative architecture, thin-shell structures, and the Monolithic Dome industry.