Pool Supply Store in Hollis, NY

Hollis Backyards Finally Have a Real Pool Supply Source

Professional-grade chemicals, above ground pool parts, and free water testing — from a team that actually builds pools across Queens and Long Island.
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A modern backyard at night features a lit pool and hot tub with fire bowls, surrounded by patio furniture, geometric stone tiles, and a large house illuminated with purple and yellow lighting, perfect for showcasing in custom pool photos.

Pool Chemicals and Equipment in Hollis

Stop Guessing. Start Swimming in a Pool That's Actually Clear.

If you’ve ever dumped chemicals into your pool and watched it stay green, you already know the problem. Big-box store products are often diluted, warehouse-aged, and sold by people who’ve never touched a pool. When you’re dealing with a Hollis summer that pushes heat index values into the 90s, you need chemicals that work at full strength, every time.

Hollis homeowners also face a pool chemistry challenge that most Long Island–focused stores don’t talk about: New York City’s municipal water is notably soft. Low calcium hardness means your pool’s pH swings more easily, and over time, that imbalance quietly corrodes your liner, your equipment, and your surfaces. Getting the right balance from the start — alkalinity, calcium hardness, chlorine — isn’t complicated when you know what you’re working with. That’s exactly what a professional water test tells you.

When you walk out of our store with a clear chemical prescription based on your actual water, you’re not overspending on guesswork. You’re buying what your pool needs — nothing more, nothing less. That’s the difference between a pool you enjoy and one that becomes a weekend project every time the sun comes out.

Local Pool Equipment Store Serving Hollis, NY

Built by Pool Builders — Not Retail Clerks

We’ve been designing, building, and supplying pools across Long Island and Queens since 2009. That’s over 15 years of working in real Hollis backyards — including the compact, privately-owned lots throughout southeastern Queens that make above ground pools the practical and popular choice they are in neighborhoods like Hollis and the adjacent Hollis Hills area.

When our team recommends a pump, a liner, or a specific chemical treatment, that recommendation comes from field experience. We’re the same professionals who install and maintain pools — not staff reading from a product sheet. That’s a meaningful difference when you’re trying to solve a real problem and don’t have time to experiment.

We’re fully licensed and insured, and we explicitly serve Queens as part of our defined service area. We’re not stretching to reach Hollis. We already know this market — and we stock for it.

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Pool Water Testing and Supplies in Hollis

From Water Sample to Clear Pool — Here's Our Process

It starts with your water. Bring a sample into our store and we run a full analysis — pH, alkalinity, calcium hardness, chlorine levels, and more. Because Hollis pools are filled with NYC municipal water, which is softer than what most Long Island pools are working with, that calcium hardness reading matters more than most people realize. You’ll leave knowing exactly what your pool needs, not what the packaging suggests.

From there, you’re picking up professional-grade products — not the diluted versions you’d find on a chain store shelf. Whether it’s liquid pool chlorine, a shock treatment after a heavy summer rainstorm, or a clarifier to knock out cloudiness, every product recommendation is tied to your actual water chemistry results. No upselling. No guessing.

If you’re in the middle of pool season and something’s off — a filter that’s struggling, a liner showing wear, a pump that’s not moving water the way it should — our team can talk you through next steps. That might mean a new part from our retail floor or it might mean scheduling a service visit. Either way, you’re not starting from scratch with someone who doesn’t know your pool.

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Swimming Pool Chemicals and Parts in Hollis

Everything Your Hollis Pool Needs, Stocked and Ready

We carry the full range of what pool owners in Hollis actually use: swimming pool chemicals including shock, algaecide, clarifiers, and balancers; liquid pool chlorine in professional-grade concentrations; pool pumps and filters; above ground pool parts including replacement components and compatible equipment; replacement pool liners; pool covers for sale sized for both seasonal protection and winter closing; and pool accessories for day-to-day maintenance and care.

Above ground pool owners — which describes a large portion of Hollis homeowners working with the kind of modest, private backyards that are genuinely rare in New York City — will find that we stock specifically for your setup. Liners, wall fittings, compatible pump and filter systems, and the right chemicals for above ground pool volumes are all on our floor. We don’t treat above ground pools as an afterthought.

It’s also worth knowing that most residential above ground pools in Hollis fall within the NYC Department of Buildings’ permit-exempt category — pools under 400 square feet accessory to a one- or two-family home typically don’t require a full DOB building permit. We understand the NYC regulatory environment, which is meaningfully different from Nassau or Suffolk County rules, and can help you navigate what applies to your specific setup.

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Why does my Hollis pool keep losing chlorine so fast every summer?

Heat and sunlight are the two biggest chlorine killers, and Hollis summers deliver both in full force. When heat index values are regularly pushing into the 90s from late June through August, free chlorine burns off significantly faster than it would in a cooler climate. UV exposure accelerates that process even further if you’re not using a stabilizer like cyanuric acid to protect your chlorine from breaking down in direct sunlight.

There’s also the water source to factor in. NYC municipal water is soft — low in calcium hardness — which makes your pool’s pH less stable. When pH drifts high, chlorine becomes far less effective even when the reading looks fine on a test strip. This is one of the most common reasons Hollis pool owners feel like they’re constantly adding chemicals without results. A professional water test that checks your full chemistry panel — not just chlorine — usually reveals the real issue quickly. Once you’re balanced correctly, your chlorine will actually do its job.

For a standard spring opening in Hollis, you’re typically looking at a shock treatment to knock out any algae or bacteria that built up over winter, an algaecide to follow up and prevent regrowth, and a full chemical balance — meaning you’re adjusting pH, total alkalinity, and calcium hardness before the pool goes into regular use. Because NYC tap water is soft, calcium hardness adjustment is often the step people skip and then wonder why their water is still giving them trouble.

If you used a winter cover properly and closed the pool with the right chemical treatment in the fall, your opening is usually straightforward. If the cover came loose, took on a lot of debris, or the water looks dark green, you’re dealing with a heavier algae situation that needs a more aggressive shock protocol and possibly a clarifier or flocculant to clear the water column. Bringing a water sample in before you buy anything is the fastest way to know exactly what your pool needs — rather than buying a full opening kit and hoping for the best.

The clearest signs are brittleness, persistent wrinkling that won’t smooth out, visible fading or bleaching beyond normal wear, and any tears or holes — even small ones. If you’re consistently losing water and can’t find an obvious leak at the fittings or equipment, the liner is usually the culprit. Above ground pool liners in the New York area typically last 7 to 10 years depending on how well the pool is maintained, how balanced the water chemistry stays, and how much UV exposure the liner takes over the season.

In Hollis, where the pool season is compressed — roughly late April through Labor Day — you’d think liners would last longer due to fewer months in use. But improper winterization, water that stays unbalanced, or a winter cover failure that allows debris and standing water to sit on the liner can shorten its life significantly. If your liner is showing multiple stress points or you’re patching more than once a season, replacement is the more cost-effective path. We carry replacement pool liners and can help you identify the right fit for your specific above ground pool model.

It’s useful when the people running the test actually know what they’re looking at — and are willing to tell you what you don’t need, not just what you could buy. A proper in-store water test checks pH, total alkalinity, calcium hardness, free chlorine, combined chlorine, and sometimes cyanuric acid and phosphate levels depending on your situation. That’s a complete picture of your pool’s chemistry, and it takes the guesswork out of what to purchase.

The honest value of free water testing is that it saves you money. If your pH is the only thing off, you don’t need a full shock treatment, a clarifier, and an algaecide. You need a pH increaser or decreaser and maybe an alkalinity adjustment. A store that tests your water before selling you products is a store that’s more interested in solving your problem than running up your receipt. For Hollis pool owners who are managing their pool budget carefully, that kind of straight answer is worth the drive.

In most cases, no — but the specifics matter. Under NYC Department of Buildings rules, outdoor above ground pools that are accessory to a one- or two-family home, limited to 400 square feet or less in area, and meet basic setback requirements generally do not require a full DOB building permit. This is different from Nassau County or Suffolk County regulations, which have their own permit thresholds and safety requirements. If you’re getting advice from a Long Island–focused store or contractor, make sure they’re familiar with NYC DOB rules specifically — they’re not the same.

If your pool exceeds 400 square feet or doesn’t meet the setback distance requirements relative to your property line or existing structures, you’ll need to go through the DOB permit process before installation. For the vast majority of above ground pools in Hollis backyards — which tend to be modest in size given the lot dimensions typical of southeastern Queens single-family homes — the permit-exempt threshold covers the installation. When in doubt, the NYC DOB’s online portal or a quick call to 311 can confirm your specific address and situation.

Timing matters more than most people think. In Queens, you generally want to close your pool when the water temperature consistently drops below 60°F — typically late September into October. Closing too early, while the water is still warm, creates ideal conditions for algae to grow under your cover all winter. Closing too late risks damage from an early freeze if your equipment isn’t protected in time.

The actual closing process involves balancing your water chemistry one final time — pH, alkalinity, calcium hardness, and a closing shock — then adding a winterizing algaecide and, if you have an above ground pool, draining the water level down appropriately and blowing out the lines if applicable. A proper winter safety cover goes on last, secured tightly enough to handle whatever a New York winter brings. If your cover failed last season or is showing wear, replacing it before closing is far cheaper than dealing with a green, debris-filled pool at opening. We carry pool covers for sale suited to Queens winters and can walk you through what your specific setup needs before you button it up for the season.