What is the LSI calculator and why does it matter?

The Langelier Saturation Index (LSI) measures whether pool water is balanced, corrosive, or scale-forming. EZ Pool Biller automatically calculates LSI from your chemistry readings — pH, alkalinity, calcium hardness, stabilizer, and water temperature — so your technicians know immediately if the water is in range or needs adjustment.

Can technicians log chemical readings from their phone?

Yes. Technicians use the EZ Pool Biller mobile app to enter water chemistry readings at each stop. The app calculates LSI on the spot, recommends dosing amounts, and saves everything to the customer's history — no paper logs or double entry required.

Does chemical tracking integrate with inventory management?

Yes. When a technician records chemical usage at a stop, EZ Pool Biller automatically deducts that amount from their truck stock inventory. This gives you accurate chemical cost-per-service data and keeps inventory levels current without extra work.

Features / Chemical Tracking

Chemical Tracking Built for Pool Professionals

Log water chemistry readings in the field, get instant LSI calculations and dosing recommendations, and keep a complete compliance history for every pool you service.

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Automatic LSI Calculation at Every Stop

The Langelier Saturation Index tells you whether pool water is balanced, corrosive, or scale-forming. EZ Pool Biller calculates it automatically from the readings your technicians enter — no mental math, no lookup charts.

✓ Instant LSI score — calculated as soon as readings are entered
✓ Color-coded status — green for balanced, red for out of range
✓ Historical trends — track LSI over time per pool to spot patterns
✓ Compliance-ready — documented proof of water balance for every visit

EZ Pool Biller mobile app showing water chemistry readings and LSI calculation

Every Parameter That Matters

Track all the water chemistry readings your technicians need to keep pools safe and compliant.

pH Level

Track acidity/alkalinity with target range alerts for each pool

Free Chlorine

Ensure sanitizer levels stay within safe and effective range

Total Alkalinity

Monitor buffering capacity to prevent pH swings

Cyanuric Acid (Stabilizer)

Track CYA levels to protect chlorine from UV degradation

Calcium Hardness

Prevent plaster damage from water that is too soft or too hard

Water Temperature

Factored into LSI calculations for accurate saturation index

Dosing Recommendations, Not Guesswork

Once your technician enters readings, EZ Pool Biller calculates exactly how much of each chemical to add based on the pool's volume and current levels. No more over-dosing or under-dosing.

✓ Pool-volume-aware — dosing based on actual gallons, not estimates
✓ Chemical-specific — recommendations for chlorine, acid, soda ash, calcium, and more
✓ Reduces waste — accurate dosing means less chemical waste and lower costs
✓ Trains new techs — even junior technicians get expert-level dosing guidance

How Dosing Works

Technician enters water chemistry readings at the stop

System compares readings against target ranges for that pool

Dosing recommendations calculated using pool volume

Chemical usage logged and deducted from truck inventory

Per-Location History

Every reading stored with date, technician, and values

Trend Charts

Visualize chemistry changes over weeks and months

Compliance Docs

Exportable records for health department or liability

Inventory Integration

Chemical usage automatically updates stock levels

Complete History. Full Compliance.

Every reading your technicians capture is stored permanently on the customer's record. Need to prove water balance for a liability claim or health inspection? It is all there — date-stamped, technician-attributed, and exportable.

✓ Full audit trail — who recorded what, and when
✓ Chemical usage tied to inventory — every ounce accounted for
✓ Service visit reports — readings included in reports customers can see in their portal

Chemical Tracking FAQ

Stop Guessing. Start Measuring.

Chemical tracking is included with every EZ Pool Biller account.

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No credit card required. Free data transfer from your current software.