How to Clean Your Filter | Combined Pool & Spa

The #1 Hot Tub Maintenance Task You Can’t Ignore: Cleaning Your Filter

Keeping your hot tub in top shape isn’t difficult, but there’s one maintenance task you absolutely cannot ignore—cleaning your filter. A dirty or clogged filter can cause restricted water flow to the heater, which can lead to freezing in winter months, not to mention poor water quality. Fortunately, maintaining a clean filter is simple and will help ensure your hot tub runs smoothly all year long.

Why Cleaning Your Filter Is Essential

The filter is the heart of your hot tub’s water circulation system. It removes debris and keeps the water crisp and clear. If it becomes clogged, not only does your water quality suffer, but your heater and pump can also be affected, leading to potential damage and expensive repairs.

How to Properly Clean Your Hot Tub Filter

Inspect Your Filter Monthly
Every month, remove your hot tub filter and inspect it. Even if it looks clean on the outside, filters can develop internal calcification, restricting water flow. Simply looking at the surface isn’t enough—you need to give it a deep clean.
Use a Filter Cleaning Tablet
One of the best advancements in hot tub maintenance is the filter cleaning tablet. Here’s how to use it:
- Fill a bucket with warm water (never cold).
  Drop in a filter cleaning tablet and let it dissolve.
- Submerge your filter in the solution and let it soak for 2-3 hours.
- Remove and rinse thoroughly—this step is crucial! If any cleaning solution remains, it can create excessive foam in your hot tub.
Regular Rinsing Is Key
After soaking, be sure to fully rinse the filter with clean water. A light rinse won’t do the job—you need to remove all residue to prevent foaming and water issues.
Know Your Hot Tub’s Filter System
Caldera Spas, for example, have one large filter, while other models may have multiple filters (two, three, or even five). No matter your hot tub model, keeping your filter clean will ensure your spa stays in peak condition.

Make It a Habit!

Cleaning your filter regularly is one of the simplest ways to maintain your hot tub and avoid unnecessary problems. Make it a monthly routine, and you’ll enjoy clean, clear water and a trouble-free spa experience.

Need a new filter or cleaning supplies? Visit our online store or stop by Combined Pool & Spa, and we’ll help you find everything you need!