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Behind the Pump Lid – Wet End Issues and Tips!

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Pool pump problems often look dramatic in the field, but the fix is usually simple if you know where to look. One of the most common headaches is a pump lid that feels welded on, especially on models like the Pentair WhisperFlo and some larger Jandy pumps. The lid is designed to stay tight under pressure, so forcing it with your palm can leave you with sore hands and wasted time. A rubber mallet is an underrated pool service tool: a few controlled taps on the lid corners while you hold tension can break the seal and let the lid spin free. For Hayward Super Pump and Super II style lids, a dedicated removal tool can be the difference between a two-minute stop and a full-on wrestling match, so keeping the right tool on the truck pays for itself quickly. When lids are abnormally tight or the pump starts showing air bubbles, cavitation, or priming issues, the pump lid O-ring is a prime suspect. The O-ring is the seal that makes the pump pot airtight, and even a small defect can let air in a...
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Pool Guy Knowledge Vol. 5: Training Employees and More!

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Pool service work looks simple from the outside, but the real pros know the job is a long game: protecting your body, protecting the pool surface, and protecting your pool service business from avoidable mistakes. One of the fastest ways to shorten a pool technician career is skin exposure to harsh pool chemicals. Daily contact with chlorine, trichlor tablets, and muriatic acid can dry out hands, irritate skin, and create lingering discoloration. Even well meaning “protection” can backfire. Thin latex gloves can trap water and chemicals, effectively soaking your skin in chlorinated water for hours as you drive a pool route, creating more damage than going barehanded.   A better solution for pool technician safety is choosing gloves designed for wet work and chemical handling. Nitrile coated work gloves with a cloth backing stay comfortable, dry faster between stops, and help you keep a consistent routine: glove on for dosing and handling containers, glove off while driving, th...
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The Pool Has Been Sabotaged!

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Pool maintenance often fails for a frustrating reason: the homeowner unknowingly fights the system you are trying to keep stable. One of the biggest issues starts at the pool filter. When customers “take care of the filter” without understanding the details, filtration drops and the water never quite clears. With a DE filter, running with no diatomaceous earth, running with barely a dusting, or dumping in an entire bag can all cause cloudy water and poor performance. Cartridge filters get neglected too, with elements left in place for years until pleats spread, bands break, and the fabric clogs with oils and debris. For pool service pros, diagnosing these problems quickly is a key skill because a clean-looking equipment pad can hide a filter that is no longer doing its job. Filter neglect is not limited to DE and cartridge systems. Sand filters can be ruined by years of never backwashing, turning media into a hardened mass that channels and stops filtering, sometimes to the point where...
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Pool Filter PSI Decoded: Clean, Dirty, or Trouble?

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Pool filter PSI is one of the fastest ways to spot circulation problems, but only if you understand what the pressure gauge is actually telling you. PSI means pounds per square inch, and on a pool filter it reflects resistance as water tries to move through the system. As resistance rises, water flow back to the pool drops, which can show up as dull water, weak returns, a spa spillway that turns from a strong sheet into a trickle, or water features that barely run. The key pool maintenance habit is to learn your “clean filter pressure” for each pool, because every equipment pad, plumbing run, and filter type can start at a different baseline.   A clean starting PSI is your reference point, not a universal number. When a filter is freshly cleaned, note the gauge reading and treat it as the baseline for that specific pool. As the filter loads with debris, PSI often climbs and circulation slows, but the rate of change depends heavily on the filter design and surface area. In gene...
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Why “Shocking” Your Pool Isn’t a One-Time Fix

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Shocking a pool gets talked about like it’s a single action, but it’s really a process of raising free chlorine high enough, long enough, to oxidize contaminants and kill algae. When a pool turns green, the root cause is almost always too little effective chlorine relative to what’s in the water. That “shock” word hides the real work: measuring conditions, adding enough liquid chlorine or cal hypo to reach a meaningful ppm target, then testing again because results are not instant. Think of it like cooking: you don’t check a cake after one minute and declare it done, and you can’t add a small dose of chlorine to a swamp and expect a miracle. For pool owners and pool service pros, learning the pool shock process means fewer return trips, faster green pool cleanup, and less frustration when chlorine seems to disappear overnight.   A practical starting point for a severely green pool or heavy mustard algae is an aggressive dose that matches the demand. A field proven rule of thum...
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Amaze Your Customer on Your Pool Route!

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Pool service pros live for those “how did you do that?” moments, and nothing creates them like a fast green pool cleanup. When a customer has burned through hundreds of dollars in pool chemicals with no progress, your process is the difference. Two common approaches dominate: the floc method and the shock and awe method. Floc uses aluminum sulfate to bind suspended debris and algae, drop it to the floor, then you vacuum to waste after about 48 hours with the pump off. Shock and awe relies on raising free chlorine extremely high to oxidize algae and organics, then filtering out the dead material. Which option makes sense depends on your region, pool filter type, and whether you can vacuum to waste with a multiport valve. Speed comes from removing bottlenecks, and the pool filter is often the biggest one. In cartridge filter pools, old, compacted cartridges can slow circulation and trap fine debris poorly, making a green pool cleanup drag on. Swapping in new cartridges during a cleanup c...
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Zero Chlorine: Why You Can’t Trust Breakpoint Math Alone

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Zero chlorine in a swimming pool is one of the fastest ways a clean backyard turns into a cloudy, algae-prone headache. For pool service technicians and homeowners, a “0 free chlorine” reading usually means more than just forgetting a dose. It often follows heavy bather load, a pump left off for days, not enough chlorine added last visit, or a buildup of organics that rapidly consumes sanitizer. The key pool maintenance lesson is speed: the longer the water sits without sanitizer, the more bacteria, microalgae, and debris multiply, and the harder it becomes to recover water clarity and safe sanitation.   A critical step is testing the right numbers, not guessing. When a pool zeroes out, combined chlorine (chloramines) is commonly present, which is why the water may smell “chlorine” while still being unsafe. Use a proper pool test kit that measures total chlorine and free chlorine so you can calculate combined chlorine (total minus free). This matters because breakpoint chlorin...
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