Chemistry Engine
Know exactly what to add, every time.
Dosing calculations tuned to your water temperature, stabilizer level, and pool surface. You get precise amounts that actually work.
Learn moreExpert-grade chemistry calculations. Plain-English explanations. One integrated system.
A complete chemistry platform that gives you confidence every time you test your water.
Know exactly what to add, every time.
Dosing calculations tuned to your water temperature, stabilizer level, and pool surface. You get precise amounts that actually work.
Learn moreEvery recommendation works together.
All your chemistry parameters are connected. Unity coordinates them so every suggestion moves your water toward balance.
See how it worksComplex chemistry distilled into one clear number. Know at a glance if your pool is ready to swim.
How it's calculatedYour 24/7 pool expert.
Ask why your chlorine keeps disappearing. Get answers based on YOUR pool, YOUR equipment, YOUR test history.
What Splash knowsYour pool knows the forecast.
Freeze warnings to protect your equipment. Rain alerts to stay ahead of dilution. UV tracking to keep your chlorine effective.
Explore alertsDosing recommendations calibrated to your exact water conditions. Your chlorine target adjusts with temperature and stabilizer level. Your calcium threshold matches your pool surface. Every calculation reflects how your pool actually works.
Your chlorine target changes based on water temperature and stabilizer level. A warm pool with high stabilizer needs different chlorine than a cooler pool with less. PoolFu calculates this automatically, so you always know the right amount.
Vinyl, fiberglass, plaster, and pebble surfaces all have different calcium needs. Every recommendation is tailored to your actual pool surface for results you can trust.
Your water balance tells you if your pool is corrosive or scale-forming. PoolFu explains what this means for YOUR pool and what to do about it.
Built on science, trusted by pool owners worldwide.
Our Unity Framework coordinates all your chemistry parameters into one integrated system. Every recommendation is checked against everything else, so your guidance always points in the same direction.
pH 7.4 and pH 7.6 are both ideal. You have flexibility within a healthy range.
If your water balance trends toward corrosive, we suggest targeting the higher end of pH's range. Your targets shift intelligently based on conditions.
pH changes easily and cheaply. Most water balance corrections happen through pH adjustment first, keeping your maintenance simple.
We prioritize keeping each parameter in its healthy range. Your water stays safe and comfortable.
Saltwater pools with typical stabilizer levels have different balance characteristics. PoolFu recognizes what's normal for your setup.
Every suggestion is checked against all other guidance. All your advice works together toward balanced water.
Transform complex chemistry into a single 0-100 score. Know instantly whether your pool is safe to swim.
Swim confidently. Chemistry is optimal.
Safe to swim. Minor adjustments recommended.
Swim with caution. Action needed.
Do not swim. Immediate action required.
Dangerous. Pool is unsafe.
An expert pool professional available 24/7. Ask any question and get a direct, actionable answer based on your specific pool.
"Why is my chlorine always low?"
Splash sees: Your salt system output, pool volume, recent test history showing low chlorine, recent rainfall, and current stabilizer level.
The response addresses YOUR specific situation, giving you a real answer you can act on.
100 messages per month included with your subscription.
Real-time weather integration that protects your pool and informs your chemistry decisions.
Official government weather warnings, prioritized for pool owners:
Hemisphere-aware guidance. December in Sydney means summer pool season. December in Minneapolis means winterization.
Six parameters. Infinite interactions. One intelligent framework that understands how they work together.
PoolFu knows why pH affects chlorine efficacy, how CYA changes your FC targets, and when negative CSI is actually expected for your setup.
When parameters and water balance interact, PoolFu knows which to prioritize. One clear path forward, never contradictory advice.
Your SWG pool at 85°F with CYA at 70 ppm gets guidance tailored to that exact configuration. Equipment, surface, temperature, it all matters.
Unity evaluates your water as one integrated system, powered by our Chemistry Engine. Every recommendation considers how parameters interact, so you never get conflicting advice. It calculates temperature-adjusted targets, dynamic chlorine ranges based on your stabilizer, and equipment-aware guidance that adapts to your setup. It also monitors for contamination, adjusting recommendations to prevent issues like staining.
Exact dosing. Zero guesswork. Chemistry confidence that pays for itself the first time you skip the pool store.
For pool and spa owners
For service businesses
For crews with technicians
Yes. PoolFu does the thinking for you. Enter your test results and the app tells you exactly what to do, step by step, with clear explanations of why each action matters. The chemistry engine handles the complexity. You just follow the guidance. If you ever want to dig deeper, Splash AI is there to answer questions in plain English. You don't need to study pool chemistry. You just need to follow the steps.
PoolFu is built on the Unity Framework, a chemistry framework we developed as a first in the pool industry. At its core is an engine based on Wojtowicz's foundational research, the same thermodynamic relationships and saturation equations that define modern pool chemistry science. Unity ensures every recommendation works together as one integrated system. When the app suggests lowering your pH, it has already checked that advice against your alkalinity, stabilizer level, water temperature, and saturation index. You never receive guidance that contradicts itself. This level of coordination is something many pool professionals don't have access to.
Your Health Score is a single number from 0 to 100 that tells you whether your pool is safe to swim in. It weighs sanitizer levels most heavily, then pH, then the supporting parameters. A score above 90 means excellent water quality. Below 50 means something needs attention now. One glance, and you know exactly where you stand.
Yes. PoolFu includes specifications for 616 saltwater generator models from 129 manufacturers, each with model-specific salt targets. When your chlorine runs low, the app suggests adjusting your SWG output percentage first, then extending run time, before ever recommending you add chemicals manually. Your equipment does the work. PoolFu just tells it what to do.
Yes. PoolFu includes a searchable database of 1,721 hot tub models from 167 brands, so your water volume is set automatically when you select your spa. Chemistry targets adjust for higher temperatures, and bromine support is built in for spa owners who prefer it. Same precision, smaller water.
Yes. PoolFu works anywhere in the world. The chemistry engine factors in your local climate and seasonal patterns when calculating recommendations. Whether you're managing a pool in Arizona, Norway, or Singapore, the guidance adapts to your conditions. Pool chemistry follows the same science everywhere. Your location just changes what that science needs to account for.
Splash is your on-demand pool chemistry expert, available around the clock. The core app already tells you what to do through the chemistry engine. Splash is there when you want to understand why, or when you have a question the step-by-step guidance doesn't cover. Ask why your pH keeps drifting up, and Splash considers your saltwater generator, your test history, and recent weather before answering. Think of it as having a pool expert in your pocket for the moments when you need more than just instructions.
Yes. PoolFu includes a free 14-day trial with full access to every feature. Cancel anytime. After the trial, an annual subscription is $53.99 per year. That works out to less than half the price of a latte each month. Some pool service companies charge $500 a month for weekly chemistry visits. PoolFu gives you that same level of expertise, built on science most technicians don't have access to, for a fraction of what a single service call would cost.
PoolFu is available on iPhone and iPad. Your pool data syncs across all your Apple devices, so you can log a test on your phone by the pool and review your history on your tablet later. Android support is not available at this time.