This entry was posted on January 6 2026.
When temperatures drop, your spa works harder to stay warm. That means winter is one of the most important times to keep up with routine checks. Whether you own a hot tub, swim spa, or cold tub, a few simple habits can go a long way toward preventing freeze damage and costly repairs. Take a look at our handy checklist for winter spa tips!
1. Keep the Water Warm (Even When You're Not Using It)
Even if you’re not planning a soak, it’s smart to keep your spa running through winter.
- Recommended Temp: For most spa owners, 100°F to 104°F is ideal during the winter months. Plan to keep your hot tub at a minimum of 95°F.
- Why it matters: A warm water baseline helps your heater maintain temp and reduces the chance of freeze-ups if power is interrupted.
- If you won’t be using your spa at all, you could consider winterizing it. We don’t usually recommend winterization, but consult with a local technician before you decide.
2. Check Water Level Weekly
Water naturally evaporates, and a low water level can expose your heater or pumps to air. This can quickly lead to damage.
- Make it a habit to top off your spa weekly.
- Snowmelt and cold weather can increase evaporation, even if you’re using a cover.
3. Inspect and Maintain Your Filter
A clean filter keeps water circulating efficiently—essential for freeze protection!
- Rinse your filter at least every two weeks in winter.
- Replace it every 3–6 months depending on use.
- Use tools like a filter flosser or spray cleaner for best results.
4. Watch for Error Codes
Error codes are your spa’s early warning system. This is especially true when it comes to temperature or flow issues.
- If something doesn’t look or sound right, check your display panel!
- Use our Master Spas Error Code Guide to troubleshoot common issues.
- If you're unsure, contact our support team. We're here 7 days a week.
5. Make Sure Your Cover Is Doing Its Job
A quality spa cover is your first line of defense against cold air and heat loss.
- Look for gaps, cracks, or waterlogging.
- A snug, well-fitted cover keeps warm air in and prevents ice buildup.
- Need a replacement? Shop OEM covers or design your own →
Need Help? We’re Here Every Day
We hope these winter spa tips come in handy! Whether you’re checking a part, ordering supplies, or just need friendly guidance, our team is here seven days a week. We’re easy to get in touch with via live chat, phone, or email.
Don’t forget: We ship fast from Wisconsin, with free shipping (continental US) on orders over $99 and $9.99 flat rate under that.
