Notes from the deep end

Practical articles for pool owners on skimming, water testing and choosing the right equipment.

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25 articles

Pool Troubleshooting · Archive date: · 3 min read

Is It Safe to Swim in Green Pool Water?

Green pool water is usually a sign of algae, poor filtration, or low sanitizer. The safest choice is to stay out until the pool is clear and working normally.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

Is Black Algae in Your Pool Dangerous?

Black algae is usually a sanitation warning, not an immediate toxin threat, but it can make a swimming pool slippery, unsanitary, and unsafe to use.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

What Does Mustard Algae Look Like in a Pool?

Mustard algae usually looks like a dusty yellow, tan, or yellow-brown film on walls, steps, and fixtures that brushes away but often returns.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

What Does Black Algae Look Like in a Pool?

Black algae usually shows up as stubborn black or dark blue-green spots on pool walls, steps, and corners that look stained, rough, and hard to brush away.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

How to prevent algae in a pool

Prevent pool algae by keeping water circulating, brushing problem areas, removing debris early, and following your pool chemical labels and equipment manuals.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

How to Remove Algae from a Pool Without a Vacuum

Yes—you can remove algae from a pool without a vacuum by brushing, skimming, cleaning baskets, and keeping filtration running under the manual’s guidance.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

How to Remove Algae from Pool Walls

Brush algae loose, vacuum the debris, clean the skimmer and filter, and keep circulation strong. If green growth returns, check water balance and call a pro.

Written for PoolSkimmer on Oct 23, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

How to Unclog a Pool Skimmer Line Safely

Start with the skimmer basket and throat, then judge whether the blockage is deeper in the suction line. Hidden clogs need a qualified pool professional.

Written for PoolSkimmer on Oct 7, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

How to Get Rid of Algae in an Above Ground Pool

To get rid of algae in an above ground pool, remove debris, brush all surfaces, vacuum loosened growth, and keep the filter running and maintained correctly.

Written for PoolSkimmer on Oct 24, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

Why Is There No Suction in My Pool Skimmer?

No suction at the skimmer usually comes from low water, a clogged basket, a stuck weir, a closed valve, or loss of prime. Start with safe, simple checks.

Written for PoolSkimmer on Oct 7, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

What does pollen look like in a pool?

Pollen in a pool often looks like yellow, green, or tan dust, specks, or a thin film that gathers on the surface, waterline, and skimmer area.

Written for PoolSkimmer on Oct 24, 2026; assigned an earlier archive date, not published on that date.

Pool Troubleshooting · Archive date: · 3 min read

How to Find a Pool Skimmer Leak and Choose the Right Repair

Learn how to tell whether your pool skimmer is leaking, inspect the gasket and faceplate safely, and decide when a simple repair is enough—or when to call a pro.

Written for PoolSkimmer on Oct 7, 2026; assigned an earlier archive date, not published on that date.