Notes from the deep end

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

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12 articles

Water Chemistry · Archive date: · 3 min read

What Water Chemistry Problems Can Cause Itchy Skin After Swimming?

Itchy skin after swimming can come from poor pool chemistry, low sanitizer, chloramines, or pH imbalance. Check the pool water in a safe order.

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 much pH increaser should you add to a pool?

There’s no universal dose. The right amount depends on your pool volume, current pH, and the product label, so test first and retest after circulation.

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 Much Shock to Add to a Pool When Opening?

There’s no one-size-fits-all shock amount for pool opening. The right choice depends on your pool volume, test results, and the product label directions.

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 Clean Calcium Buildup on Pool Tile

The safest approach is to stop the pump, brush first, then use a tile-safe scale remover or professional descaling for stubborn calcium on pool tile.

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 Low Alkalinity in a Pool Dangerous?

Low alkalinity usually is not an immediate emergency, but it can make pool pH unstable, irritate swimmers, and harm surfaces or equipment over time.

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 Handle Very Soft Water in a Swimming Pool

Very soft pool water can corrode plaster, metal, and heaters. Learn how to confirm it, correct it carefully, and know when to call a pool professional.

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 Many Gallons of Liquid Chlorine to Shock a Pool?

There is no universal gallon amount. The right dose depends on pool volume, chlorine strength, and the product label, so test first and never guess.

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

Water Chemistry · Archive date: · 3 min read

Why Your Pool Sanitizer Keeps Disappearing So Quickly

Fast sanitizer loss usually signals high chlorine demand from sunlight, debris, heavy use, poor circulation, or water balance issues—not just a weak feeder.

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

Water Chemistry · Archive date: · 3 min read

Does Pool Shock Raise pH?

Pool shock can raise pH, but not every product does. The effect depends on the chemistry, so test before and after, then follow the label and manual.

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 Raises Cyanuric Acid in a Pool?

Cyanuric acid rises mainly from stabilized chlorine products. To raise a low CYA level safely, identify the product first, test often, and follow label directions.

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

Water Chemistry · Archive date: · 3 min read

List of Pool Chemicals and What They Do

Pool chemicals help sanitize water, balance pH, control algae, and protect surfaces and equipment. Test first, then follow your pool manual and product labels.

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 Lower Stabilizer in a Pool

The practical way to lower cyanuric acid (CYA) is to replace some pool water with fresh water, then retest. There is no simple additive fix.

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