Notes from the deep end

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

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143 articles

Water Chemistry · Archive date: · 3 min read

Can You Put Pool Shock in the Skimmer?

Usually no: pool shock should not go in the skimmer unless the product label specifically allows it. Use the label, PPE, and safe circulation practices.

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

Water Chemistry · Archive date: · 3 min read

What Chemistry Checks Matter Most Before Opening a Pool?

Before opening a pool, focus on the chemistry checks that protect swimmers and equipment: sanitizer, pH, alkalinity, calcium hardness, and stabilizer.

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 Water Stable During Hot Weather

Hot weather speeds up chlorine loss, evaporation, and pH drift. Keep pool water stable with frequent testing, strong circulation, and careful top-offs.

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

Water Chemistry · Archive date: · 3 min read

Why a Saltwater Pool Still Needs Regular Water Balance Checks

A saltwater pool makes chlorine, but it does not control pH, alkalinity, calcium hardness, or stabilizer. Regular testing protects water and equipment.

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 Tell When a Pool Test Strip Result Is Too Unreliable to Trust

Pool test strips are useful for quick water checks, but old strips, bad storage, poor timing, and confusing water conditions can make results unsafe to trust.

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

Water Chemistry · Archive date: · 3 min read

What Causes Total Dissolved Solids to Build Up in Pool Water?

TDS builds up from evaporation, fill water, chemicals, swimmers, and debris. Learn the common causes, warning signs, and when to drain or 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 Manage Pool Chemistry After a Big Refill or Top-Off

A major refill can dilute sanitizer and shift pH, alkalinity, and calcium hardness. Test, circulate, correct carefully, and retest before anyone swims.

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

Water Chemistry · Archive date: · 3 min read

Why Pool Water Turns Cloudy After Shocking

Cloudy water after shocking often means debris, dead algae, or mineral particles are still in the water. Check circulation, filtration, and balance first.

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

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.