Observed arrival · 2026-11-13
Add to My Pool
A pool-chemistry calculator that estimates what to add, how much, and in what order from pool details and test readings.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Pool, spa, and commercial-pool operators checking water chemistry
- Worth noticing
- The page reports 283 build-time tests, including 35 comparisons with published amounts and 78 checks of limits and edge cases.
Field notes
The form accepts pool dimensions or a chosen volume, water-test readings, and product-specific details such as chlorine strength. It can account for pool type, surface, and water appearance, and the page directs users to add chemicals separately, allow the pump to run, and retest. The site reports 283 build-time tests, including 35 comparisons with published chart, label, and manual amounts and 78 checks of limits and edge cases.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue