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What’s Inside a Trichlor Tablet? (And Why It Matters)

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Trichlor chlorine tablets, often called chlorine pucks, have become one of the most common tools in swimming pool care because they are convenient, potent, and easy to store. They contain roughly 90% available chlorine, which makes them one of the strongest chlorine products by percentage. The catch is that they dissolve slowly, so they are great for steady daily sanitation but a poor choice when a pool is at zero free chlorine or actively growing algae. If you need an immediate chlorine boost for a green pool, liquid chlorine or another fast-acting sanitizer is usually the better move while tablets maintain a baseline. For pool service routes and DIY pool maintenance alike, understanding what trichlor does well and what it cannot do quickly is the first step toward better water quality. Supply history and pricing also explain why pool owners treat tablets like “the default.” The market shifted over time from older practices like chlorine gas dosing toward stabilized tablet systems, es...
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Bob Lowry Breaks Down the Most Powerful Chlorine for Pools

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 Chlorine gets marketed with big numbers, and those numbers often create more confusion than clarity. Pool owners and even many pros hear that liquid chlorine is “weak” because it might say 10% or 12.5%, while trichlor tablets can claim 90% or 99% available chlorine. The key is learning what those percentages actually describe and how they’re measured. Some labels reflect weight-to-weight concentration, others use trade percent conventions, and liquids introduce volume-based assumptions that don’t map cleanly onto dry products. A practical comparison cuts through the noise: a gallon of 12.5% sodium hypochlorite delivers about one pound of pure chlorine equivalent, while a pound of trichlor delivers roughly 0.9 pounds of chlorine equivalent. Once you translate products into “pounds of available chlorine delivered,” the strongest chlorine type becomes a math question, not a branding contest, and you can dose accurately for pool sanitation and water chemistry control.   A bi...
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Bob Lowry Explains Why Some Products Kill Your Pool Chlorine

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Zero chlorine in a swimming pool is one of the most frustrating problems for pool service pros and homeowners because it often shows up right after you do something “helpful” like adding a stain remover or a sequestering agent. You test, see no free chlorine residual, add more chlorine, and the next reading is still zero. This creates a cycle of chemical demand, wasted sanitizer, and a pool that can be unsafe for swimmers. The key idea is that some pool chemicals create an immediate oxidizer demand, meaning the chlorine you add gets consumed before it can establish a measurable residual. Understanding why this happens helps you choose better products, dose correctly, and avoid repeated chlorine loss after metal treatment or algae treatments. Stain removers and many metal control products are made from ingredients that are readily oxidized by chlorine. If you add a product that chlorine wants to oxidize, then immediately add chlorine, you are essentially forcing a chemical reaction that...
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The Most Advanced Salt System!: CircuPool CORE Balance Control | App + Wi-Fi Chemical Automation

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The CircuPool CORE Balance Control system is a modern chemical automation platform designed to simplify pool maintenance by combining salt chlorination, real-time water monitoring, and automated chemical dosing. At the center of this system is the CircuPool CORE Balance Control, which goes beyond traditional timers and manual testing by continuously analyzing water conditions and adjusting accordingly. Tutorial and setup videos: https://www.youtube.com/playlist?list=PLlbgfwNDzjchjdGmEF2i4ODbJRFoMvn0m Purchase info: https://www.circupool.com/circupool-core-balance-control-wifi-chemical-automation-platform.html Core Components and How It Works 1. Core Control (Chlorine Generation) At its foundation, the system uses a salt chlorine generator to produce sanitizer on-site. This reduces the need for manual chlorine handling. The transparent cell housing allows visual inspection, while CellSaver technology helps extend the life of the cell by protecting internal components. 2. Balance Contro...
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Betta Flex Solar Surface Cleaner

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  The Future of Skimming: Why the Betta Flex is a Game Changer Let’s be honest: nobody buys a pool because they’re excited about the daily "skimming workout." Standing at the edge of the water with a long pole, chasing down a stubborn leaf, isn't exactly the relaxation you signed up for. If you’re ready to reclaim your afternoon, the Betta Flex might just be your new best friend. This solar-powered, cordless robotic pool skimmer is designed to handle the surface debris automatically, so you can spend your time actually in the water instead of cleaning it. Zero Cords, Zero Hassle One of the most annoying parts of pool maintenance is managing equipment that requires constant attention. The Betta Flex runs entirely on solar energy . That means: No extension cords draped across your deck. No manual recharging or hunting for outlets after every use. Energy-efficient operation that’s as friendly to the environment as it is to your schedule. Just place it in the water, and ...
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Hot Tub Care Tips from Bob Lowry: Keep Your Spa Sparkling

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Hot tub maintenance gets confusing fast because spa water chemistry is not the same as pool care. Hot tubs run hotter, hold far less water, and see heavy bather load, so sanitizer demand spikes in minutes. That is why the bromine vs chlorine debate matters less than understanding what each product does. Bromine is a reliable disinfectant at higher temperature and higher pH, and bromamines stay active without the strong “chlorine” odor people hate. But bromine has a key limitation: it does not oxidize the oils and wastes bathers bring in, like sweat, urine, deodorant, lotions, and sunscreen. That missing oxidation is why many spas look fine and then suddenly smell or feel dull a day or two later. Without an oxidizer, bromine can kill germs but it cannot break down the contamination that feeds problems and creates odors. A practical routine is to add an oxidizer after you soak, often a non-chlorine shock (monopersulfate) or a chlorine-based shock. The challenge is there is no simple test...
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Bob Lowry Explains Why Borates Are a Game-Changer

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Borates have become one of the most practical “set it and forget it” upgrades in modern pool chemistry, especially for pool service pros managing a weekly route. The big appeal is simple: borates are typically a one-time addition that you only verify occasionally, yet they deliver ongoing benefits in swimming pool maintenance. At the recommended borate level of about 50 ppm, they act as a secondary pH buffer that helps slow the upward pH drift many pools experience. That matters most in saltwater chlorine generator pools, and in pools with constant aeration like spillovers, waterfalls, negative edge designs, or heavy return turbulence, where carbon dioxide outgassing pushes pH higher and higher. The second benefit is algae prevention. Borates are best described as an algostat rather than an algaecide: they do not “kill” algae the way chlorine does, but they can make it harder for algae to get started. That distinction is important for realistic expectations and for sanitation. You stil...
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