Adding a vegetable garden
I haven't bothered to write too much about the landscaping efforts surrounding the pool itself as it's not particularly interesting, but below are a few photos of the vegetable garden built on the downhill edge of the pool. The construction is a straightforward combination of 50 and 80mm sleepers on...more
Skimmer installation
The original plan called for placing the skimmer on the deck side of the pool, simplifying the pipework and avoiding any interference with the retaining walls on the other sides. This also would have simplified the bond beam concreting for the skimmer, with the ground providing natural formwork. The originally...more
Filling the gap
There's a lot of backfilling to be done. In addition to filling the gap between the pool shell and the newly built retaining walls, there's also the rear retaining wall that can now be safely filled in. The graphic below shows the key areas in red: The rear wall must...more
Building the pool retaining walls
The next step is to build the retaining walls that will enclose the pool on three sides. These walls are built upon the footings that were poured just before we broke for winter. The walls are built using hollow concrete blocks, which will be filled with concrete, per the design...more
Water is the driver of nature
Once the inspector had completed inspecting our glorious temporary fence, it was time to finally get some water into the pool. A milestone to be sure. Since the fibreglass shell is not strong enough to support the hydro-static pressure of the water, the outside must be back-filled at the same...more
Temporary fence required
After a long break over the winter, it's finally time to get started again. In this part of the world even a pool that is under construction must have a compliant fence in place if more than 300mm of water is to be placed (or could potentially accumulate) in the...more
A concrete milestone
It's crunch time. After much effort spent excavating, building a base, making a mold, and filling it with steel, it's time to fill it all up with concrete. Having never even mixed concrete for a fence post, I did some deep diving and learned the following. What's inside Concrete is...more
Pool Plumbing - Construction
With the 3D design to guide me, I set about building the pump/filtration system and connecting all of the suction and return pipes. Laying out the equipment positions. All suction/return pipes meet the pool at the originally planned skimmer location. Preparing the suction and return pipes that run...more
Plumbing the pool shell
Suction and return fittings As explained in the pool plumbing design post, we have a skimmer and two wall suction fittings to extract water from the pool and three return eyeballs to return water. Layout of suction and return points Installation of these fittings is a pretty straight forward process....more
Pool plumbing - Design
A pool's plumbing system is designed to keep the water clean and hygienic. It consists of one or more suction fittings in the pool that draw water and debris in, a bunch of equipment located somewhere near the pool that processes the water, and one or more returns, where the...more
So much steel (Part two)
This is the second part of a two-part post. See part one here. Step 3 - Place it Since the steel inside the concrete is there to provide tensile strength, it makes sense to ensure it is in the place where the tension is greatest. This location differs depending on...more
So much steel (Part one)
534 meters of bar plus mesh to be precise. As discussed during the detailed design, the retaining walls and wall footings contain a lot of steel. Specifically, N12 and N16 bars. This type of steel reinforcement inside concrete is typically referred to as rebar, or reo, depending on which part...more
Making a mold
After completing work on the compacted base for the retaining wall footings, it's time to make preparations to pour the concrete footings themselves. Footings for the retaining walls I use the word pour because concrete is poured as a fluid (more like honey than water) and hardens over time. In...more
Now that's a crane
70-tonne Liebherr mobile crane arriving It's time for step two of moving the pool shell into place (step one being already complete). With a 50 meter telescopic boom, maximum hoist height of 65 meters and operating radius of 48 meters, the crane we're using is quiet a beast. With an...more