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Rainbow Chlorinator Tips and Tricks: Maintenance Made Simple

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Pentair Rainbow chlorinators are some of the most common tablet feeders on pool pads, and for good reason: they are reliable, familiar to pool service pros, and easy to keep running with basic maintenance. I prefer the Rainbow line over many alternatives because the design is serviceable in the real world, especially when you are moving fast on a route. The big rule that frames everything is tablet compatibility and safety. These are trichlor tablet chlorinators only. Never use cal-hypo tablets in a trichlor feeder, and never switch chemicals in an old unit with residue inside. Mixing trichlor and calcium hypochlorite can cause a violent reaction, including an explosion, and it is not worth the risk. There are two main styles you will see: the offline Pentair Rainbow 300 series (often recognized by the black tubing) and the inline Rainbow 320 series that is plumbed directly into the return line. I do not treat one as universally “better,” but they fail in different ways. Offline units ...
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Pool Service Knowledge Vol 4: Real-World Fixes & Lessons

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Pool service is won or lost in the small details customers never notice, and “Pool Guy knowledge” is really about stacking tiny habits that prevent bigger failures. Start at the skimmer, because skimmer lids and skimmer baskets are constant touchpoints in weekly pool maintenance. In many backyards, the skimmer lid design creates a sheltered pocket that attracts spiders, including black widows in some regions. A quick visual check before you lift the lid is a real pool technician safety practice, not paranoia. From an operations angle, keeping common replacement skimmer lids on the truck also reduces emergency runs, and the lid itself often reveals the skimmer manufacturer when it still has the original branding. Skimmer basket performance is another overlooked source of recurring debris problems. Older locking skimmer baskets can jam, so swapping to a standard basket can save time and frustration on route work. Even with a normal basket, many float when the pump shuts off, creating a g...
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Pool Finishes Explained: Which One is Best for You?

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Picking the right pool surface type is one of the biggest decisions you’ll make when building, buying, or resurfacing a swimming pool, and the “best” choice often depends on your region and your water. In many areas, vinyl liner pools dominate; in others you’ll see more fiberglass shells; and in places like Southern California, standard white plaster is still everywhere with Pebble Tech finishes growing fast. When you compare pool finishes, think beyond the brochure: durability, comfort underfoot, staining risk, calcium buildup in hard water, and what your pool builder will actually warranty all matter. A finish that looks perfect on day one can age very differently depending on chemistry, maintenance habits, and local water conditions. Plaster pool finishes remain popular because they’re cost effective and familiar. Modern plaster is still long lasting, but it commonly shows mottling, meaning uneven shades that look like a topographic map across the surface. Older pools often stayed w...
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YT Pool Questions: Cleaner Stuck, Priming Speed & CircuPool

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Pool service pros and homeowners run into a frustrating pattern: equipment “fails” when the real issue is setup. A classic example is the Hayward Phoenix 4X or Hayward Aquanaut suction side cleaner that spends half its life going sideways. The four-wheel design can be top heavy because of the handle, so when the hose is too short the cleaner reaches the deep end, tips, and can’t right itself until it finds a slope or corner. The most reliable fix is simple: add one or two hose sections so the cleaner has room to turn without rolling over. Fine tuning also helps, like sliding the float on the first hose, but correct hose length is the difference between a steady suction side cleaner and a cleaner that “moonwalks” on its shell. Variable speed pool pumps create another avoidable headache: priming that’s set way too aggressive. Many VS pumps default to something like 3450 RPM for five minutes, which can be loud, waste energy, and annoy everyone when it kicks on early near a bedroom or neig...
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Pool Service Knowledge Every Tech Should Know – Vol 3

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Pool service work is full of “small” decisions that quietly protect your customer, your route, and your insurance policy. One of the most useful pool equipment troubleshooting habits is the simplest: when controls act weird, power-cycle the system. Automation panels like Jandy Aqualink can freeze in the wrong state, stay stuck in spa mode, or refuse to run on schedule. Flipping the sub-breakers off for about 30 seconds can restore normal operation. Variable speed pump errors often clear with a longer reset, since manufacturers may recommend two to three minutes for a hard reboot. Even basic single-speed motors can look dead when a breaker is only slightly tripped, so fully switching it off and back on can reveal the real issue and save time on unnecessary diagnostics. Field experience also teaches that “harmless” pool toys can create real pool maintenance problems. Metal parts from toy cars, screws in water guns, and other hardware can rust and stain plaster or fiberglass. Floating noo...
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How to Add Extra Work Without Losing Your Sanity

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Growing a pool service business often stalls when your weekly route is full but your income still feels capped. One of the fastest ways to increase revenue and win new pool service accounts is to add targeted extra services like green to clean, one-time cleanup, acid wash, and filter cleaning, but only if you do it strategically. The goal is not to work seven days a week; the goal is customer acquisition that feeds your weekly maintenance route. Think of these add-ons as lead-in offers: they get you on the property, prove your quality, and create a natural moment to quote ongoing pool cleaning service. When you treat extra services as a system instead of random side jobs, you protect your time and increase profit per hour. Marketing matters most when you are new or expanding territory, and the simplest pool service marketing tool is often your own vehicle. A “blank truck” signals you are not open for work and gives homeowners no way to contact you. Instead of spending thousands on a tr...
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Generic vs Premium Salt Systems: What You Need to Know

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Saltwater pool chlorinators are supposed to make pool care easier, but the salt cell replacement market can turn simple maintenance into an expensive decision. In this conversation we focus on how to choose between OEM salt cells and generic or aftermarket salt cell replacements for major systems like Hayward AquaRite, Pentair IntelliChlor, and Jandy TrueClear. The key takeaway is value over sticker price: the real cost includes cell life, warranty, reliability, and who owns the risk if a part fails. For pool service companies, that risk shows up as callbacks, unhappy customers, and time lost driving back to fix a “deal” that did not last. For homeowners, it shows up as downtime and water quality problems when chlorine production stops.   We also talk about how the market changed after CMP Power Clean salt cells were discontinued. That line built a strong reputation for durability and a different approach to cleaning, relying more on scraping calcium scale from the plates rath...
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