About Ask A Pool Tech
Pool knowledge, without the guesswork.
A free, practical pool resource for owners, service techs and the pros who build and coat pools.
Why this site exists
Most pool problems aren’t mysterious. Green water, cloudy water, scale, stains and leaks have known causes and proven fixes. But the answers are often buried in forum threads, product pitches and conflicting advice.
Ask A Pool Tech puts the essentials in one place: plain-English guides, calculators that do the math for you, and a Pool Doctor that walks you from symptom to fix. Everything here is free, with no sign-up.
What we cover
- Water chemistry — chlorine, pH, alkalinity, calcium, stabilizer and salt
- Cleaning routines, openings and closings
- Troubleshooting algae, cloudy water, stains, scale and leaks
- Pumps, filters, heaters, cleaners and salt systems
- Pool surfaces, resurfacing and spray-applied coatings
- Shipping container pools — and the business of building and coating them
Supported by ArmorThane
Backed by people who protect surfaces for a living.
Ask A Pool Tech is supported by ArmorThane, a manufacturer of spray-applied polyurea and polyurethane protective coatings founded in 1989 in Springfield, Missouri. ArmorThane equips and trains applicators around the world — including the growing number who waterproof shipping container pools.
Our promise to readers
- Practical first. Steps you can follow today, in the order that works.
- Honest comparisons. Every surface, sanitizer and product type has trade-offs — we tell you what they are.
- Safety matters. Pool chemicals are serious. We’ll always point you to the label and to a licensed pro when it’s time.
- Always free. No paywalls, no sign-ups.
Have a question we haven’t covered?
Send it in — it might become our next guide.