--- title: The Pool Shark H2O Commercial Pool Chemistry Blog | Scott Trafton (3) description: Author (3) --- 855-742-7542 - - - [Login](https://app.poolsharkh2o.com) [![Pool Shark H2O - Chemical Recording and Pool Maintenance](https://blog.poolsharkh2o.com/hs-fs/hubfs/raw_assets/public/PoolSharkH2O_December2020/images/poolSharkPLogo-130x100.png?width=200&height=225&name=poolSharkPLogo-130x100.png "Pool Shark H2O - Chemical Recording and Pool Maintenance")](https://poolsharkh2o.com/) - [Home](https://poolsharkh2o.com/) - [Pool Log Book](https://poolsharkh2o.com/pool-log-book/) - [Commercial Pool Software](https://poolsharkh2o.com/commercial-pool-management-log/) - [Corporate Solutions](https://poolsharkh2o.com/commercial-pool-management-log/corporate-solutions/) - [Features](https://poolsharkh2o.com/features/) - [Pricing](https://poolsharkh2o.com/pricing/) - [Contact](https://poolsharkh2o.com/contact/) - [Blog](https://blog.poolsharkh2o.com/) - [Search](http://blog.poolsharkh2o.com/search-blogs) - [Home](https://poolsharkh2o.com/) - [Pool Log Book](https://poolsharkh2o.com/pool-log-book/) - [Commercial Pool Software](https://poolsharkh2o.com/commercial-pool-management-log/) - [Corporate Solutions](https://poolsharkh2o.com/commercial-pool-management-log/corporate-solutions/) - [Features](https://poolsharkh2o.com/features/) - [Pricing](https://poolsharkh2o.com/pricing/) - [Contact](https://poolsharkh2o.com/contact/) - [Blog](https://blog.poolsharkh2o.com/) - [Login](https://app.poolsharkh2o.com/) # The Pool Shark H2O Commercial Pool Chemistry Blog News & Updates # Search the Pool Shark H2O Blogs Our blog library has an extensive amount of articles on common issues with pool water chemistry and the most common causes of these issues. Use the search below to find an article that may help resolve your pool question. This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. If you are not finding the answer to your question, feel free to email us at [support@poolsharkh2o.com](mailto:support@poolsharkh2o.com) and we can try to help. [![Mustard Algae in Pool Water: What Pool Operators Should Know](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/Mustard%20algae%20in%20pool.png)](http://blog.poolsharkh2o.com/mustard-algae-in-pool) # [Mustard Algae in Pool Water: What Pool Operators Should Know](http://blog.poolsharkh2o.com/mustard-algae-in-pool) Jan 14, 2026 Mustard algae in pool environments can be one of the most frustrating water quality issues commercial and public pool operators face, often returning even when pool chemistry appears to be under control. It can show up when everything else looks “within range,” then keep coming back—clinging to walls, spreading to equipment, and resisting normal sanitation routines. [![Black Algae in Pools: What Causes It and How to Eliminate It](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/black%20algae%20in%20pools.png)](http://blog.poolsharkh2o.com/black-algae-in-pools) # [Black Algae in Pools: What Causes It and How to Eliminate It](http://blog.poolsharkh2o.com/black-algae-in-pools) Jan 05, 2026 Black algae is one of the most persistent and costly issues a commercial or public pool can face. For operators responsible for maintaining safe, code-compliant pools, the appearance of dark, stubborn, spot-like growths on plaster or concrete surfaces is a sign that water chemistry, sanitation, or maintenance routines need immediate attention. [![Swimming Pool Chlorine Levels: What Commercial & Public Pool Operators Need to Know](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/Swimming%20pool%20chlorine%20levels.png)](http://blog.poolsharkh2o.com/swimming-pool-chlorine-levels) # [Swimming Pool Chlorine Levels: What Commercial & Public Pool Operators Need to Know](http://blog.poolsharkh2o.com/swimming-pool-chlorine-levels) Jan 05, 2026 For commercial and public pool operators, maintaining proper chlorine levels is a core part of guest safety, pool reputation, and a regulatory requirement. Whether you manage a municipal facility, a hotel pool, a fitness center, or a multi-pool aquatic complex, the chemistry behind your water management program directly affects bather health, equipment lifespan, operational costs, and your... [![How to Shock a Saltwater Pool: Guidance for Commercial and Public Pool Operators](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/how%20to%20shock%20a%20saltwater%20pool.png)](http://blog.poolsharkh2o.com/how-to-shock-a-saltwater-pool) # [How to Shock a Saltwater Pool: Guidance for Commercial and Public Pool Operators](http://blog.poolsharkh2o.com/how-to-shock-a-saltwater-pool) Jan 05, 2026 Saltwater pools are often misunderstood as “low maintenance,” but commercial and public facilities know better. While salt chlorine generators (SCGs) produce a steady chlorine residual, which can improve chlorine consistency, they do not eliminate the need for shocking. In high-bather, regulated environments, shock treatment remains a critical operational tool for restoring water quality,... [![What is a Saltwater Pool? An Explainer for Commercial and Public Pools](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/what%20is%20a%20saltwater%20pool.png)](http://blog.poolsharkh2o.com/what-is-a-salt-water-pool) # [What is a Saltwater Pool? An Explainer for Commercial and Public Pools](http://blog.poolsharkh2o.com/what-is-a-salt-water-pool) Jan 05, 2026 Inside this Blog: How saltwater pools use chlorine How much salt is in a saltwater pool? Why many facilities choose saltwater systems What kind of maintenance do saltwater pools have? Who should consider a saltwater pool? Is a saltwater pool right for your facility? Frequently Asked Questions (FAQs) about saltwater pools [![Swimming Pool Chlorine Types: the Pros and Cons of Each](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/swimming%20pool%20chlorine%20types.png)](http://blog.poolsharkh2o.com/swimming-pool-chlorine-types) # [Swimming Pool Chlorine Types: the Pros and Cons of Each](http://blog.poolsharkh2o.com/swimming-pool-chlorine-types) Nov 13, 2025 Summary: Commercial and public pools rely on chlorine for safe water, but each chlorine type—stabilized solids, liquid chlorine, cal hypo, and salt-chlorination systems—has distinct pros, cons, and operational impacts. Choosing the right one affects water quality, maintenance demands, cost, staff workload, and guest experience. This guide explains how each option performs in high-use aquatic... [![Do Saltwater Pools Have Chlorine? Understanding Saltwater Pools vs Traditional Chlorine Pools](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/Do%20Saltwater%20Pools%20Have%20Chlorine.png)](http://blog.poolsharkh2o.com/do-saltwater-pools-have-chlorine) # [Do Saltwater Pools Have Chlorine? Understanding Saltwater Pools vs Traditional Chlorine Pools](http://blog.poolsharkh2o.com/do-saltwater-pools-have-chlorine) Oct 28, 2025 Highlights: What is a saltwater pool? How saltwater pools differ from traditional chlorine pools What stays the same when it comes to saltwater pools and water chemistry Regulatory and compliance considerations for saltwater pool The bottom line on saltwater pools vs chlorine pools Frequently Asked Questions (FAQs) [![Is Florida Enforcing the NSF/ANSI/CAN 50 Test-Kit Requirement Under Chapter 64E-9? What Pool Owners Need to Know](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/Does%20Chlorine%20Freeze.png)](http://blog.poolsharkh2o.com/is-florida-enforcing-the-nsf-ansi-can-50-test-kit-requirement-under-chapter-64e-9) # [Is Florida Enforcing the NSF/ANSI/CAN 50 Test-Kit Requirement Under Chapter 64E-9? What Pool Owners Need to Know](http://blog.poolsharkh2o.com/is-florida-enforcing-the-nsf-ansi-can-50-test-kit-requirement-under-chapter-64e-9) Oct 14, 2025 Inside this Blog: What the regulation says Is Florida actually enforcing it? The benefits of using a pool test kit certified to NSF/ANSI/CAN 50 standards Our recommendations [![Recreational Water Illness Prevention: A Guide for Pool Operators and Managers](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/Recreational%20water%20illness%20prevention.png)](http://blog.poolsharkh2o.com/recreational-water-illness-prevention) # [Recreational Water Illness Prevention: A Guide for Pool Operators and Managers](http://blog.poolsharkh2o.com/recreational-water-illness-prevention) Oct 14, 2025 Like you, we share the belief that swimming pools, splash pads, and hot tubs are essential community assets. They provide fun, fitness, heat and even stress relief, but they can also become sources of recreational water illnesses (RWIs) if not properly managed. For pool owners, operators, and managers, preventing RWIs is a health responsibility and a business necessity that protects your patrons,... [![Cost to Drain a Pool: When to Drain vs. Chemically Treat](https://blog.poolsharkh2o.com/hubfs/Blog%20Images/cost%20to%20drain%20a%20pool.png)](http://blog.poolsharkh2o.com/cost-to-drain-a-pool) # [Cost to Drain a Pool: When to Drain vs. Chemically Treat](http://blog.poolsharkh2o.com/cost-to-drain-a-pool) Oct 14, 2025 Maintaining crystal-clear, healthy pool water is all about balance. Most of the time, routine chemical adjustments keep your pool within state codes and industry standards. But sometimes, the chemical balance drifts too far, and the only real fix is draining and refilling. 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