How to Start a Hot Tub in 12 Simple Steps
Whether you’ve just purchased a new spa or you’re reopening one after a break, proper hot tub startup is essential for clean, safe, and relaxing water. At Central Jersey Pools, we know that getting your spa ready can feel overwhelming—but it doesn’t have to be.
Follow these 12 easy steps to get your hot tub up and running like a pro.
1. Drain and Rinse the Hot Tub
Before adding fresh water, always start with a clean slate.
For New Hot Tubs:
Manufacturers often include antifreeze in plumbing lines to prevent freezing during shipping. To remove it:
- Fill the footwell with water
- Run the jets for a few minutes
- Drain completely
For Existing Hot Tubs:
If your spa has been sitting unused, drain all old water to eliminate bacteria and buildup. Use a jet cleaner to flush the plumbing before refilling.
Quick Tip: Double-check that all valves, fittings, and connections are secure before refilling.
2. Shut Off the Power
Safety always comes first. Turn off your hot tub at the breaker and unplug it completely before cleaning or performing maintenance. Water and electricity should never mix.
3. Clean the Interior and Cover
A clean shell ensures better water quality.
- Use a non-abrasive spa cleaner
- Wipe surfaces with a soft cloth or sponge
- Rinse thoroughly to prevent foam buildup
If your spa has been sitting, consider a deep clean to remove residue and contaminants.
4. Install or Clean the Filters
Your hot tub filter is key to maintaining clear water.
- New tubs: Install fresh filter cartridges
- Used tubs: Inspect and clean existing filters
For best results, rinse filters and soak them overnight in a filter cleaner solution if needed. Replace worn-out filters to maintain efficiency.
5. Fill the Hot Tub Properly
Use a hose filter when filling your spa to remove:
- Metals (iron, copper)
- Minerals (calcium)
- Debris
Place the hose inside the filter compartment to help prevent air locks.
Water Level Tip:
Fill to about one inch below the headrests while keeping all jets submerged.
6. Prime the Pump
Air trapped in plumbing lines can block water flow. Priming the pump removes that air.
- Use your control panel’s priming mode (if available)
- Or manually release air using the bleeder valve
Repeat the process until water flows evenly through all jets.
7. Add Start-Up Chemicals
Once water reaches about 80°F, begin balancing your water chemistry.
Important tips from Central Jersey Pools:
- Know your spa’s water capacity
- Measure chemicals carefully
- Never mix chemicals outside the water
Balanced water protects your equipment and keeps your soak safe.
8. Run the Jets
Turn on the jets for at least 20 minutes to circulate chemicals evenly. Keep air valves closed to avoid disrupting pH levels.
9. Test the Water
Testing ensures your chemical levels are correct. Improper balance can:
- Damage equipment
- Irritate skin
- Allow bacteria growth
Test your water weekly and consider professional testing monthly for best results.
10. Set the Ideal Temperature
For comfort and safety:
- Recommended range: 98°F–102°F
- Maximum: 104°F
Keeping a consistent temperature helps reduce energy costs and prevents strain on your system.
11. Cover and Heat the Spa
After setting the temperature:
- Let the water circulate briefly
- Cover the hot tub for 24 hours
This helps retain heat, stabilize chemicals, and prevent evaporation.
12. Test and Adjust Again
Before using your hot tub, test the water one more time. Adjust chemical levels if needed to ensure everything is balanced and safe.
Additional Hot Tub Startup Tips
Before restarting your spa, inspect for:
- Cracks or surface damage
- Mold or mildew
- Loose wiring or connections
If you notice electrical issues, contact a professional. At Central Jersey Pools, we always recommend leaving electrical repairs to licensed experts.
Enjoy Your Hot Tub
Starting your hot tub doesn’t have to be complicated. With the right steps and proper care, you’ll enjoy clean, crystal-clear water every time.
Need help with hot tub maintenance or water care products? Central Jersey Pools is here to help you keep your spa in perfect condition year-round.
Now sit back, relax, and enjoy your soak!