Quarrylight Pools · A finish journal & build shop · Alder Gap & the Millstone Road · Est. 2009
The last thing built is the only thing seen.
A pool is a hole with hydraulics until the interior goes in — and the interior is where budgets are quietly won and lost. Quarrylight is a two-crew shop that keeps a register of finishes: pebble against plaster, quartz between them, glass tile at the waterline. We publish how each ages in this valley’s water, and we put the choice in writing before anyone signs.
Issue 12 of the register mailed this spring · 214 interiors placed · every finish photographed again at year five, on purpose
Plaster is a promise of seven good years. Pebble is a promise of twenty, with texture. Neither is a scam — but only one of them belongs under your family’s feet, and the register exists to say which.
Services
The finish register, in order
01
Exposed pebble
Stone broadcast into the shell and brought up by an acid wash after troweling — a finish that is mostly aggregate, which is why it shrugs at chemistry that stains plaster. Textured underfoot, earthy in colour, a twenty-year expectation in Millstone water, and our default recommendation for a family pool — in writing, at the design table.
02
White & tinted plaster
The classic: smooth as china, bright as morning, the least expensive interior going — and honest about it. Expect seven to twelve years, expect mottling (calcium behaving like calcium, not a defect), and expect us to say so before you choose it rather than after it blooms.
03
Quartz, the middle way
Plaster with crushed quartz through it: nearly as smooth, markedly tougher, a shade more money. The register’s year-five photographs put quartz closer to pebble than plaster on wear — which is why it is the quiet majority of what we place.
04
Glass tile & the waterline
Where the water meets the eye: a glass course at the waterline, or a full glass interior if the budget means it. Impervious, colourfast, the only finish that looks better at year ten than at fill — priced per course at design, never discovered at the tile setters’ truck.
How we build
The cure comes before the colour
No interior goes into a shell that has not cured a full 28 days — pebble, plaster or tile, the rule does not move, because a green shell is what crazes a finish and voids its warranty. Then the startup: a balanced fill, a sequestrant against the valley’s iron, daily brushing for the first month, and no heater until the chemistry settles. The register carries a chapter on each, and every Quarrylight contract names the finish, the cure date and the startup plan on the same page.
The finish, named at signing
Interior, expected life, texture underfoot and the startup plan are four lines in the contract — decided at the design table with register samples in your hands, not at the shell stage from a brochure the salesroom had left.
Season figures
The shop, by the register
2025 — 2026, and earlier
Finishes, photographed at fill and year five
Six from the register file — two shot the week of the fill, four re-photographed at year five because that is the only honest hour for a finish. Samples of every one live in the shop; come rub them with a bare foot before you decide anything.
Reader mail
What the register gets asked
The five questions every Alder Gap kitchen table reaches, in the order they arrive. The shop line answers eight to six, Millstone time.
Pebble or plaster — just tell me which?
For a family pool in this valley’s water: pebble, and the register’s year-five photographs are the reason — plaster starts the clock at seven years and shows every fluctuation in chemistry as a shadow. For a budget that cannot carry it, quartz carries most of the durability at two-thirds the cost. Plaster remains the brightest and the cheapest, and we still place it — with its chapter handed over first.
Is the texture of pebble hard on feet?
The exposed aggregate is finer than a broom finish on a sidewalk — you feel it, and most people like feeling it; wet feet grip it better than glass-smooth plaster. Sensitive swimmers can take a polished-pebble variant that closes most of the pores. The shop keeps both as samples precisely so feet can vote before wallets do.
What is mottling, and is it a defect?
It is calcium hydrate behaving like calcium hydrate — smooth grey shading that comes and goes with water temperature and chemistry, on essentially every plaster pool ever placed. It is not a leak, not a failure, and not grounds for a warranty claim; telling you that before you choose plaster is half the reason the register exists.
How soon can we swim after the finish goes in?
The fill is balanced the same day, brushing is daily for three to four weeks, the heater waits a month, and swimming starts when the chemistry settles — usually inside the first fortnight for pebble and quartz, a little longer for fresh plaster while it cures underwater. The startup plan in the contract has dates on it, like everything else we sign.
Can you refinish a pool with a different interior?
Yes — a sound shell takes a new interior over a bond coat, and a refinish is the moment to reconsider the waterline tile and the return aim while the pool is empty. We photograph the shell, note the old finish’s age, and put the new one in the register like any other: same cure rules, same startup, same year-five photograph.
They put three samples on the counter and a bare-foot test in the shop, then handed us the register’s year-five photos of each. We chose pebble in french grey and it still looks like river stone six summers on. The finish and its expected life are literally lines in our contract — I checked.
Our plaster pool mottled and I was ready for a lawsuit. Quarrylight showed us the register chapter on calcium, the shading map of our own pool, and the year-five photos of what mottling becomes — which is, mostly, nothing. Then they refinished it in quartz anyway, because we wanted to. That is how you earn a re-read.
The 28-day cure nearly broke my patience and they simply did not budge — the crew chief said "the finish is the only thing you will ever see" and scheduled around it. The glass waterline went in dead level, the pebble beneath it reads perfectly at dusk, and the year-five photo session was their idea, not mine.
Sample sittings at the Alder Gap shop, Tuesdays & Saturdays · (555) 011-9083 · desk@quarrylightpools.example
Sample sittings
Come rub a finish with a bare foot
The register lives in the shop, three minutes from the Gap square: every interior we place, samples you can stand on, and the year-five photographs beside them. Sittings are free and unhurried; the finish decision is yours to sleep on, and the contract will still name it in writing when you are ready. desk@quarrylightpools.example