Notes from the deep end

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

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9 articles

Water Chemistry · Archive date: · 3 min read

Most Important Chemistry Checks for Spa-Style Hot Pools

Spa-style hot pools need tighter water chemistry control than standard pools. Focus on sanitizer, pH, alkalinity, calcium hardness, and water clarity.

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

Water Chemistry · Archive date: · 3 min read

How to Remove Iron Stains from a Pool Floor

To remove iron stains from a pool floor, first confirm the stain, then clean debris and circulation issues, and only use a label-directed pool stain treatment.

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

Water Chemistry · Archive date: · 3 min read

Is High Copper in Pool Water Dangerous?

High copper in pool water is usually more of a staining and corrosion problem than an immediate health emergency, but it can still signal a source that needs fixing.

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

Water Chemistry · Archive date: · 3 min read

Is High Phosphate in a Pool Dangerous?

High phosphates in your pool are usually not a direct danger to swimmers, but they can support algae, cloudiness, and slippery surfaces if maintenance slips.

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

Water Chemistry · Archive date: · 3 min read

How to Tell Whether Cloudy Pool Water Is Chemical or Mechanical

Cloudy pool water can come from poor water balance or a filtration problem. Use a simple check sequence to find the cause and know when to call a pro.

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

Water Chemistry · Archive date: · 3 min read

How to Remove Copper Stains from a Pool

Copper stains in a swimming pool usually need a two-part fix: identify the stain, then remove the copper source so the discoloration does not return.

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

Water Chemistry · Archive date: · 3 min read

How to Remove Phosphate from a Pool

To reduce phosphates in a swimming pool, remove debris first, keep filtration working well, and use a phosphate remover only if the product label directs it.

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

Water Chemistry · Archive date: · 3 min read

What Pool Chemistry Mistakes Cause Constant Sanitizing Problems?

Constant sanitizing problems usually come from unstable water balance, poor circulation, clogged filtration, or incompatible pool chemicals—not just low chlorine.

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

Water Chemistry · Archive date: · 3 min read

How to Keep Pool pH Steady When Usage Changes a Lot

Busy swim days, rain, top-offs, and debris can move pH fast. Test more often, support alkalinity, keep circulation strong, and adjust in small steps.

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