# Pool-Proof — Water Chemistry Assistant

> Step-by-step spa and hot tub water chemistry assistant using professional test kit methods. (iPhone/iPad app by Brandon Currie.)

- Source: https://appshunter.io/ios/app/pool-proof/id6761028109 (this page in markdown: same URL + `.md`)
- Developer: [Brandon Currie](https://appshunter.io/developer/1887377079)
- Category: Utilities, Health & Fitness
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-03-29
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/pool-proof/id6761028109/reviews.md

## What is Pool?

Stop guessing. Stop Googling. Pool-Proof walks you step-by-step through a complete spa or hot tub water chemistry session using Taylor K-2006 Platinum test kit methodology — the gold standard used by pool professionals.

THE RIGHT ORDER, EVERY TIME

Water chemistry is order-dependent. Balancing pH before alkalinity causes instability. Adding chlorine when pH is acidic corrodes equipment. Pool-Proof enforces the correct sequence: Free Chlorine, Total Alkalinity, pH, Calcium Hardness. Every time, without fail.

PRECISE DOSE RECOMMENDATIONS

Pool-Proof calculates exactly how much of each chemical to add — baking soda, muriatic acid, liquid chlorine, Cal-Hypo shock, dry acid, sodium carbonate (soda ash), calcium increaser, or granular bromine. Every dose follows the 50% Staged Dosing rule: add half the calculated amount, run jets for 45 minutes, then re-test. This prevents chemical bounce and over-treatment.

Dose cards show liquid amounts in fl oz and mL, plus granular equivalents in household measures (tsp, tbsp, cup) — so you can use whatever product you have on the shelf.

THE LSI SCORE

The Langelier Saturation Index (LSI) is your water balance report card. Pool-Proof calculates it using CYA-corrected alkalinity per Taylor K-2006 methodology. A large color-coded score — from corrosive to scaling — gives you the full picture at a glance.

CHLORINE & BROMINE
Switch between chlorine and bromine mode from the Setup screen. Bromine mode adjusts all target ranges, skips CYA correction, and uses the correct dosing rates for granular bromine automatically.

WET-HAND FRIENDLY
Built for poolside use. Giant tap targets. Physical-style +/- drop counters that mirror the real test kit workflow. No tiny keyboard fields. Dark theme for outdoor readability.

THE VAULT
Save every test session. Review past LSI scores and readings. Spot trends over time. All history is stored privately on your device — no account required, no cloud sync.
BUILT-IN SAFETY GUARDRAILS

Pool-Proof includes the same safety rules professional techs follow:

pH gate — chlorine dosing blocked when pH is below 7.0
Alkalinity guardrail — emergency baking soda forced when effective alkalinity drops dangerously low
Acid cap — muriatic acid limited to a safe maximum per treatment cycle
TA-first logic — pH corrections deferred until alkalinity is balanced

FLEXIBLE FOR ANY SPA

Gallons or liters volume input
F or C temperature toggle
Liquid or granular dose format preference
Basic Mode (acrylic or fiberglass spa) or Pro Mode (plaster pool, full LSI and calcium hardness)
Chlorine or bromine sanitizer

COMPLETELY PRIVATE

All data is stored locally on your device. No login. No subscription. No data collection. Nothing ever leaves your phone.
Works with the Taylor K-2006 Platinum test kit. Trusted methodology. No guesswork.

DISCLAIMER: Pool-Proof is a calculation aid designed to assist with routine residential spa maintenance. It does not replace professional water testing or licensed pool service technicians. Always follow chemical product labels and safety precautions.

## Key features

- Step-by-step chemical balancing
- Precise dose calculations
- LSI score calculation
- Chlorine and bromine modes
- Wet-hand friendly interface
- Local data storage
- Safety guardrails


## Frequently asked questions about Pool

### What is the Pool-Proof app?

Pool-Proof is a mobile application that guides users through spa and hot tub water chemistry sessions. It follows the Taylor K-2006 Platinum test kit methodology, ensuring the correct order of chemical additions and providing precise dose recommendations.

### How does Pool-Proof ensure correct water chemistry?

Pool-Proof enforces the correct sequence for adding chemicals like Free Chlorine, Total Alkalinity, pH, and Calcium Hardness. It also calculates exact amounts of chemicals to add, adhering to the 50% Staged Dosing rule to prevent over-treatment.

### What is the LSI score in Pool-Proof?

The LSI (Langelier Saturation Index) score in Pool-Proof is a report card for your water balance. It's calculated using CYA-corrected alkalinity and provides a color-coded score indicating whether your water is corrosive or prone to scaling.

### Can Pool-Proof be used with both chlorine and bromine?

Yes, Pool-Proof supports both chlorine and bromine sanitizers. You can switch between modes from the Setup screen, and the app will automatically adjust target ranges and dosing rates accordingly.

### Is Pool-Proof suitable for poolside use?

Absolutely. Pool-Proof is designed with a wet-hand friendly interface, featuring large tap targets and a dark theme for outdoor readability. It mimics the physical workflow of a test kit to make poolside use convenient.

### Does Pool-Proof collect user data?

No, Pool-Proof is completely private. All your test session history and readings are stored locally on your device. No account is required, and no data is collected or synced to the cloud.

### What devices does Pool-Proof support?

Pool-Proof is available for iPhone and iPod devices. It is rated for ages 12 and up.

### How often is Pool-Proof updated?

The latest version of Pool-Proof is 1.2, which was last updated on March 30, 2026. Updates typically address bug fixes and feature enhancements to improve user experience.

## Version history (last 1 release)

### 1.2 — 2026-03-30

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*