Ditch the clipboard and paper chemical logs. Skimlog lets your technicians log chlorine, pH, alkalinity, and every other reading with simple sliders on their phone — and instantly calculates the Langelier Saturation Index so you know if the water is balanced before you leave the property.
Every reading is timestamped, GPS-tagged, and stored permanently. Pull up any pool's full chemical history, spot trends with interactive charts, and share professional reports with customers automatically. No more lost logs, no more guessing what happened last visit, and no more compliance headaches.
No credit card required • 14-day free trial

10+
Chemical parameters tracked
Instant
LSI calculation
100%
Paperless compliance
Log, calculate, and share — in under 30 seconds per pool.
Test the water, then slide each parameter to the reading on your phone. Free chlorine, pH, alkalinity, CYA, calcium, salt — all in one screen.
Skimlog calculates the LSI instantly and recommends exact chemical doses to bring the water into balance. No more mental math.
Readings are saved permanently with timestamps and GPS. Customers get automated email reports. Export CSV/PDF for inspections.
Join 500+ pool pros who never lose a chemical reading again.
No tiny text fields. Slide to your reading for free chlorine, pH, alkalinity, CYA, calcium, salt, phosphates, TDS, and temperature.
The Langelier Saturation Index is calculated in real time as you log readings. See instantly whether the water is corrosive, balanced, or scale-forming.
Skimlog suggests the exact amount of chemicals to add based on pool volume and current readings. No more guesswork or manual charts.
Attach before-and-after photos to every service. Photos are GPS-tagged and timestamped for your records and customer trust.
View any pool's full chemistry history on interactive charts. Spot trends in chlorine demand, pH drift, or calcium buildup over weeks and months.
Service reports with all chemical readings, photos, and notes are emailed to the customer automatically after each visit.
Free chlorine, combined chlorine, pH, alkalinity, calcium hardness, CYA, salt, phosphates, TDS, and water temperature. It calculates LSI automatically from your readings.
After logging pH, temperature, alkalinity, calcium hardness, and TDS, Skimlog calculates the LSI value and shows whether the water is corrosive, balanced, or scale-forming — plus dosing suggestions.
Yes. The customer portal shows full chemical history with trend charts. You can also send automated email reports after every service visit.
Yes. Timestamped, GPS-tagged digital records satisfy compliance requirements. Export history as CSV or PDF for inspections.
Yes. Skimlog works fully offline — log readings, add photos, and complete services without cell service. Data syncs when connectivity returns.
Start your free 14-day trial and go paperless this week.
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