How to Maintain a Hot Tub: Cleaning, Chemicals & Water Balance Guide
Owning a hot tub is a luxury, but maintaining it properly ensures your investment stays clean, safe, and relaxing for years to come. Whether you just installed your first spa or you’ve had one for years, understanding the essentials of hot tub care can save you from costly repairs, foul odors, or unsafe water. Let’s break it down.
Regular Cleaning: Interior & Filters
Cleaning the Shell
Use a non-abrasive cleaner and soft cloth to wipe down the interior of the spa every 1–2 weeks. Avoid household cleaners, as they can throw off water balance.
Cleaning the Filters
Your hot tub filter traps debris and contaminants. Rinse it weekly with a hose, soak it in filter cleaner monthly, and replace it every 12–18 months.
Balancing Water Chemistry: What to Monitor
Sanitizer Levels (Chlorine or Bromine)
These kill bacteria. Check 2–3 times per week and maintain within recommended ppm.
pH Levels
pH should be between 7.2 and 7.8. Too low = acidic water (corrosive). Too high = cloudy water and poor sanitizer performance.
Alkalinity
Ideal range: 80–120 ppm. It stabilizes your pH. Use increaser or decreaser products as needed.
Calcium Hardness
Avoid scale and corrosion by keeping this between 150–250 ppm. This is especially important in areas with soft water.
Signs Your Hot Tub Water Needs Attention
Cloudy or foamy water
Strong chlorine or chemical smell
Eye/skin irritation after use
Slippery or slimy surfaces
Odd coloration (green = algae, brown = rust or metals)
Maintenance Schedule: Quick Reference
Task & Frequency
Skim & clean debris - After each use
Test water (pH, sanitizer) - 2–3x per week
Clean filter - Weekly
Deep clean shell - Bi-weekly
Drain & refill water - Every 3–4 months
Replace filter - Annually
FAQ: Hot Tub Care Questions Answered
How often should I change the water?
Every 3 to 4 months depending on use and bather load.
Can I use household bleach or vinegar in my spa?
Avoid. Stick to spa-grade sanitizers and pH products.
Do I need to shock the water?
Yes. Use a spa shock weekly to eliminate contaminants and restore water clarity.
Is a cover important for water maintenance?
Absolutely. A quality hot tub cover keeps out debris and minimizes evaporation and chemical loss.
Professional Tip: Seasonal Checks Matter
Before winter or summer, do a full system check — jets, pumps, heaters — and ensure your water chemistry aligns with seasonal temperature changes. This reduces wear and tear, and ensures consistent performance year-round.
Why Choose Clear Springs Pool & Spa?
With years of experience and a reputation for excellence across Utah, Clear Springs Pool & Spa offers expert maintenance and personalized support to help you get the most from your hot tub. Whether it’s a new Cal Spas system or a long-loved model, we’ve got you covered.
Call us at (801) 226-3950 or visit our website to book a professional water balance check or spa service today.
