Pool vs ChlorCast

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.

ChlorCast helps you stay ahead of water problems by combining fast test logging, clear chemistry guidance, chlorine forecasting, and maintenance tracking in one simple app. Whether you want a quick daily chlorine and pH check or a full chemistry snapshot, ChlorCast helps you understand your pool and know exactly what to do next. With every test you log, ChlorCast turns your readings into practical next steps. Instead of leaving you with numbers alone, the app highlights what needs attention, estimates chemical adjustments, and helps you keep your water balanced with more confidence. Weather-aware chlorine forecasting also helps you prepare for days when heat, sun, and rain may drive chlorine down faster than usual. ChlorCast is designed for real-world pool ownership, not just calculations. It gives you a current water snapshot, tracks test history over time, helps you monitor chemical inventory, and keeps useful pool-side references close at hand. The result is a cleaner, more organized way to manage your pool all season long. Features: • Log quick tests for free chlorine and pH • Record full chemistry tests including FC, pH, CC, TA, CH, CYA, and temperature • Get fix recommendations based on your latest readings • See when water needs attention and what action to take next • Forecast chlorine loss using weather conditions and upcoming trends • Track test history and monitor changes over time • View a current water health snapshot and seasonal metrics • Manage chemical inventory and estimated chemical costs • Keep maintenance records in one place • Use built-in conversion references while testing pool-side • Set reminders for quick tests, full tests, and forecast-driven chlorine checks ChlorCast is built to help pool owners stay proactive, reduce uncertainty, and spend less time guessing at water care. From daily upkeep to longer-term chemistry trends, it gives you a clearer picture of your pool and a better plan for keeping it swim-ready. If you want a smarter way to test, track, forecast, and maintain your pool water, ChlorCast is ready to help.