LSI Water Service Logbook/Plan

You keep pool and spa work organized. Thank you for using this water service log to calculate LSI, save readings, review trends, and share clear service records for work.

You take water care seriously, and that kind of steady service deserves tools that keep up. Thank you for using LSI Water Service Log to calculate LSI, save pool and spa readings, and keep clear records for every stop.

LSI Water Service Log is a practical pool service app for anyone who checks water chemistry, tracks site history, and needs fast records without a messy paper trail. It brings a Langelier Saturation Index calculator, pool and spa water balance log, site records, quick review tools, and export options into one focused app.

Built for real service days:

• Calculate LSI from TDS, temperature, calcium hardness, total alkalinity, and measured pH.
• See water balance feedback for corrosive, balanced, or scale-forming conditions.
• Save readings with the site name, date, notes, and calculated result.
• Keep pool chemistry records organized by property.
• Use Fahrenheit or Celsius for water temperature.
• Start a fresh reading quickly when the next stop begins.
• Recalculate after retesting or adjusting water.
• Keep recent inputs ready for faster entry.

Keep better records without slowing down:

• Browse saved pool and spa readings in one clean records list.
• Search by site, date, notes, or reading details.
• Sort records so recent visits or older history are easy to review.
• Duplicate a past record to speed up repeat service.
• Share a saved reading when a customer, supervisor, or teammate needs it.
• Add notes for treatment steps, follow-up work, or service context.
• Delete records with confirmation when cleanup is needed.
• Keep reading history in one place instead of scattered screenshots and notes.
• Review a customer's last visit before making the next adjustment.
• Carry the same workflow across iPhone and iPad.

Review trends and site history:

• Check site-based stats for saved readings.
• Compare minimum, maximum, and average chemistry values.
• Spot changes in pH, calcium hardness, alkalinity, TDS, temperature, and LSI.
• Use spreadsheet review when you want a wider look at saved data.
• Sort spreadsheet columns to focus on the number that matters.
• Review larger record sets without digging through separate notes.

Use it for common pool and spa work:

• Weekly residential pool service.
• Commercial pool maintenance.
• Spa startup and balancing.
• Water chemistry follow-up after chemical adjustment.
• Before and after treatment checks.
• Route history for repeat customers.
• Service documentation for teams.
• Personal records for pool owners who want a cleaner log.

Export and backup tools help once your record history starts to matter:

• Export saved readings for spreadsheet review.
• Create records backups for your own files.
• Create a full backup when you want extra protection.
• Import a backup to add saved data back into the app.
• Share files through the standard iPhone and iPad share sheet.

Quick Calc is there when you only need an answer:

• Run a fast local LSI check without creating a saved record.
• Reuse recent values when testing similar water.
• Share or print a quick result when needed.
• Reset inputs and move on to the next reading.

LSI Water Service Log is made for pool pros, spa techs, maintenance teams, service managers, and detail-focused pool owners. It is not trying to be a giant business suite. It is a focused water chemistry log that helps you calculate, save, review, and share the information you already work hard to collect.

If accurate water balance matters to your day, this app gives you a dependable place to keep it. Calculate LSI, save clean service records, review site history, watch trends, and export your pool and spa readings when the job calls for it.

Monthly Pro is a 1-month auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

If your work depends on consistent pool water chemistry records, LSI Calc DB gives you a straightforward way to calculate, log, review, and export LSI data in one place.