How often should you clean a hot tub filter?
By MySpaFilter Editorial Team · Last reviewed
A common baseline is a quick hose rinse weekly and a deep clean with filter cleaner every 4–6 weeks (Jacuzzi)[10]. Hot Spring recommends cleaning monthly[7][9], and Pleatco notes most spa makers recommend monthly, every two weeks with heavy use, and after parties[3].
Schedules compared
| Source | Rinse | Deep clean |
|---|---|---|
| Jacuzzi[10] | Weekly (every 2–3 days with heavy use) | Every 4–6 weeks (3–4 with heavy use; 6–8 with light use) |
| Hot Spring[8][9] | Monthly | Soak whenever you drain the tub |
| Pleatco[3] | Monthly; every 2 weeks with heavy use; after heavy-use events | |
| Sundance 680/780 (2024)[11][12] | Clean the pleated filter monthly | |
| Unicel[4] | Set a routine based on how much the spa is used | |
Can you clean too often?
Unicel notes cartridge filters use the debris they collect to improve filtration, so cleaning too often lowers efficiency while cleaning too rarely shortens cartridge life[4]. On systems with a pressure gauge (more common on pools), Unicel suggests cleaning when pressure rises 8 psi above the new-cartridge starting pressure[4].
Signs you are overdue
Hot Spring warns a clogged filter can reduce jet performance, limit flow, and trip the high-limit thermostat[9]; Jacuzzi lists cloudy water, musty odor and FLO errors[10]. See signs your filter is bad.
FAQ
Is weekly rinsing necessary?
Jacuzzi recommends a weekly rinse for a regularly used family tub; Hot Spring’s baseline is monthly. Rinse more often with heavy use.
Should I clean the filter after a party?
Pleatco says it is good practice to clean after heavy use such as a party.
Do I clean the filter when I drain the tub?
Hot Spring recommends soaking (or replacing) the filters every time you drain.
Sources
- Pleatco FilterWash information sheet
- Unicel — Maintenance & FAQ
- Hot Spring Spas — Maintenance Tips
- Hot Spring Spas — How Do Hot Tub Filters Work?
- Hot Spring Hot Spot Collection Owner’s Manual (2026)
- Jacuzzi — Hot Tub Filter Cleaning Made Easy
- Sundance Spas 680 Series Owner’s Manual (2024)
- Sundance Spas 780 Series Owner’s Manual (2024)
This guide summarizes published manufacturer guidance; always follow your own spa’s owner’s manual. See our disclaimer.