The numbers that keep water clear.
Test first, balance next, sanitize last. Plain-English ranges and fixes — not a store aisle.
A simple order that prevents chemical ping-pong
Fix one layer at a time. Retest before the next move.
Parameters & topics
Every chemistry guide on Splash101. Coming soon cards stay visible until published.
Start hereStartHow to test
What to measure and in what order.
Read guide
Sanitize & shockPool shock
Spike sanitizer the right way — not random dumping.
Read guidepH
Comfort, chlorine efficiency, and metal risk.
Read guide
BalanceTotal alkalinity
The buffer that fights pH bounce.
Read guide
Sanitize & shockFree chlorine
Your day-to-day sanitizer residual.
Read guide
Stabilizer & systems
Coming soon
Cyanuric acid
Stabilizer — too low burns off; too high stalls.
Stabilizer & systems
Coming soon
Saltwater basics
SWG still needs free chlorine in the water.
Balance
Coming soon
Calcium hardness
Soft water eats surfaces; hard water scales.
Stabilizer & systems
Coming soon
Phosphates
Intro only — not a magic algae bullet.
Latest chemistry guides
Newest first. Tags show the topic family.
pH
Comfort, chlorine efficiency, and metal risk.
Read guideBalanceTotal alkalinity
The buffer that fights pH bounce.
Read guideSanitize & shockFree chlorine
Your day-to-day sanitizer residual.
Read guideSanitize & shockPool shock
Spike sanitizer the right way — not random dumping.
Read guideStart hereStartHow to test
What to measure and in what order.
Read guideStabilizer & systems
Coming soon
Cyanuric acid
Stabilizer — too low burns off; too high stalls.
Looking for something else?
Chemistry is the numbers. If you need a different job, go there directly.
- Water looks wrong (green, cloudy, smell) Symptom-first fixes — not more numbers first.
- I need a weekly rhythm, not a formula First-year map and care programs.
- How much chemical should I add? Dose calculator — estimate, then retest.
- Which test strips or shock should I buy? How to choose gear — not a fake top-ten list.