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Cal-Hypo and Black Pool Stains: Bob Lowry Explains

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Clear blue water hides a lot of chemistry. In this conversation with industry legend Bob Lowry, we trace two common pain points that can rattle even seasoned pool techs: sudden black stains after dosing with calcium hypochlorite and the real health stakes when a pool slips to zero chlorine. The black stain scare can feel like a catastrophe, but it’s usually copper revealing itself, not a new problem. Copper sulfate can sit quietly on plaster, masked by the blue of the water. The instant cal hypo lands on it, oxidation shifts the compound to copper oxide, which is black and obvious. What changed isn’t the metal load, only its form—and that insight reshapes how we fix it. Once you confirm a metal stain, you have options. Ascorbic acid can lift the stain from surfaces, but it doesn’t remove copper from the system. Without metal removal, the stain returns as soon as chlorine wipes out the reducer. That’s where sequestrants and chelants come in: they surround dissolved metal and keep it fro...
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How the Pool Industry Can Lead in Water Conservation – Terry Arko

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Water scarcity no longer sits on a far horizon for pool owners and service pros; it is here and shaping how we build, filter, and maintain pools. The old habits—hosing decks, routine backwashing, and full drains every few years—made sense when water felt endless. Today, drought cycles, stressed aquifers, and stricter municipal policies put pools under a spotlight. The good news is that pools can be part of the solution. With smart filtration choices, measured chemistry, and a mindset shift from water as commodity to water as asset, we can protect clarity, protect budgets, and protect a resource that keeps getting tighter. This episode traces the evolution from 1970s practices to present-day stewardship, and it offers a practical roadmap any operator can follow. History explains how we got here. During earlier droughts, restrictions focused on lawns and outdoor watering schedules, not pools. That changed after California’s severe 2012–2016 drought, when policymakers questioned new pool ...
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Bob Lowry’s Legacy In Every Backyard with Terry Arko

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 Bob Lowry’s name still carries weight on pool routes for a simple reason: his chemistry lessons work the very next day. This conversation with Terry Arco traces how those lessons are being condensed, modernized, and delivered to pool pros across the country in 2026. The core idea is practical education for residential service techs who face tight schedules and shifting water conditions. Rather than asking pros to sit through a six-hour seminar, Terry explains how the essentials of water balance, cyanuric acid management, and free chlorine control can be taught in focused sessions that respect the realities of field work while preserving scientific rigor. At the center of this push is an abridged course derived from Bob’s 252-page Pool Chemistry for Residential Pools and its concise 26-page companion, Pool Chemistry for Service Pros. The shorter format keeps the vital principles intact: understanding Langelier Saturation Index (LSI) to prevent scale and corrosion, managing CYA to p...
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Upgrading Your Pool Tools for 2026

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 The new season is the perfect time to audit your truck and upgrade the tools that decide your pace, quality, and profit. We start with the backbone of daily service: the pole. Carbon fiber poles have matured into a clear win for pool service pros because they’re lighter, stiffer, and more durable than aluminum, which means fewer sore backs and faster control when netting, brushing, and vacuuming. Among SkimLite, Ultimate Pool Tools, and Primate, the Primate pole stands out for its feel, balance, and vertical lever locks that adjust fast with one hand. The 3-piece Primate 3X collapses to six feet for small truck beds yet extends to cover most pools from one side, reducing time and fence-dings. If your route demands a 2-piece, the 8x15 2X works well, but the key is investing in a lighter, stronger pole that you grip 90% of the day. Vacuum systems have diversified, and choosing right can change your week. Cart units like Riptide and Hammerhead still rule heavy debris and large proper...
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Breaking Into Commercial Pool Service

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 Commercial pool service looks glamorous from a distance: bigger checks, steady contracts, and name recognition with HOAs and property managers. Up close, the margins collapse if you bid like a residential route and ignore compliance, access, and payment risk. The fastest way to protect profit is to price for the real workload and add a defined headache factor. That premium covers health department inspections, chemistry logs, weekend surges, and gate or access problems that spike usage. It also buffers late payments from management companies. Treat commercial work as a different product with stricter standards, not a scaled-up backyard job. Start with demand: HOAs, apartments, hotels, and community centers often must collect multiple bids. This is your opening if your online presence makes you discoverable for “commercial pool service” and local city names. Use SEO and targeted ads that call out HOAs, property managers, and compliance. Then, build direct pipelines. Call management...
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Pool Route Tips You Can Use This Week

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Reliability in pool service begins long before you lift a leaf rake. The core shift is moving from ad‑hoc tasks to an ingrained routine that repeats at every stop. Consistency keeps clients confident and keeps you safe. Doing pools on the same day and around the same time each week helps homeowners anticipate your visit, but the deeper value is mental rhythm: clean in a set order, check baskets at a defined point, and dose chemicals last so you never wonder two stops later if you treated the water. A reliable routine also cuts risk. Skimmer lids left off cause sprained ankles; placing your vacuum hose through the deck into the skimmer creates a physical reminder underfoot so you don’t step into an open hole. Little habits like a final glance back for the chlorine floater protect both your body and your reputation. Timing your arrival to match running equipment turns minutes of guesswork into seconds of clarity. When the pump is already on, minor leaks show themselves, cleaners that sho...
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Why Verbal Pool Agreements Eventually Fail

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Clear agreements turn messy pool jobs into manageable work. Too many service pros rely on verbal promises, then face blame when stains, cloudy water, or old equipment fail at the worst moment. The core fix is simple: put expectations in writing. A one-page service agreement and targeted waivers for special work like green pool cleanups and acid washes clarify scope, timing, risks, and client duties. They are not ironclad legal contracts, but they defuse disputes, set a steady tone, and keep your cash flow on track. When a client can read what you do, when you do it, and what you don’t cover, small issues rarely grow into cancellations or chargebacks. Start with a basic service agreement that outlines what you service each visit, billing cycles, late fees, and cancellation terms. Spell out what’s included versus billable extras like filter cleans, parts, or emergency visits. Add weather exemptions, vacation pauses, and chemical policies so rain, heat waves, or supply swings don’t become...
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