Bucket test guideLeak Detector
A practical check for deciding whether the pool is losing water to evaporation or a real leak.
Coming soonPool calculator availability
Pool Calculators and Testing Guides
Seven tools are available: six revised planning calculators and the HASA CHLOR shock label-range helper. Routine chlorine planning and the separate shock label reference are limited to the named HASA CHLOR product and each tool's stated scope. Acid, soda ash, and Balance My Pool remain temporarily unavailable. Do not use results saved before this review. Follow your product label and consult a qualified pool professional when choosing targets or applying chemicals.
Calculator status
Choose a supported planning tool
Read each tool’s supported products and limits. An estimate does not choose a safe target or replace product instructions.
- pool gallon calculatorAvailable
Pool Volume Calculator
Regular rectangles, circles, and ellipses only. Use measured water dimensions and a representative average depth. Steps, shelves, irregular bottoms, kidney/freeform shapes, and attached spas need separate measurement.
Open planning calculator → - how much chlorine to add to poolAvailable
Free Chlorine Dose Calculator
Routine swimming-pool planning for HASA CHLOR only: measured FC 0–10 ppm and a label-checked target 1–4 ppm. No shock treatment, spa/hot-tub use, generic liquid strengths, or solid chlorine products. This does not choose a target or establish swimming safety.
Open planning calculator → - pool shock label helperAvailable
HASA CHLOR Shock Label Helper
HASA CHLOR swimming-pool super-chlorination label range, scaled by verified water volume. For eligible existing residential chlorine pools only. This reference does not choose a dose, predict final chlorine, treat algae/contamination, or establish swimming safety.
Open planning calculator → - muriatic acid pool calculatorUnder review
Muriatic Acid Calculator
Calculations are temporarily unavailable while accuracy and input validation are reviewed.
View status and guide → - soda ash pool calculatorUnder review
Soda Ash Calculator
Calculations are temporarily unavailable while accuracy and input validation are reviewed.
View status and guide → - baking soda for pool alkalinityAvailable
Baking Soda Alkalinity Calculator
Total alkalinity increase with nominally pure sodium bicarbonate. This does not predict pH or choose a target.
Open planning calculator → - pool stabilizer calculatorAvailable
Cyanuric Acid Stabilizer Calculator
CYA increase with nominally pure granular cyanuric acid. Liquid stabilizers are unavailable. This does not determine an appropriate chlorine level or choose a CYA target.
Open planning calculator → - pool calcium hardness calculatorAvailable
Calcium Hardness Calculator
Calcium hardness increase with the selected 77% or 94% CaCl2-equivalent product. This does not evaluate saturation balance or choose a target for your surface.
Open planning calculator → - pool salt calculatorAvailable
Pool Salt Calculator
Salt increase with nominally pure pool-grade sodium chloride. Obtain the target from your generator manual; the tool does not select it.
Open planning calculator → - balance my poolUnder review
Balance My Pool
Calculations are temporarily unavailable while accuracy and input validation are reviewed.
View status and guide →
Up next
Leak and freeze tools are coming
Two more tools are in the build pipeline — a bucket-test diagnostic for when your pool is losing water, and a freeze-prep checklist for the week before a hard North Texas cold snap. Both come straight from the calls we get most.
Bucket test guide
Seasonal checklistFreeze Prep
A cold-weather prep tool for Ellis County pool owners before a hard freeze moves in.
Coming soon4.8 Google rating44 reviews20 years in businessWaxahachie-based
Want Thomas to handle the pool math?
Weekly service, equipment help, or a one-time consult before you pour another chemical in the water. 20 years on Ellis County pools — and most of our customers have been with us for years, not months.