The most important aspect of maintaining your hot tub is without doubt cleaning the filters.

There are a number of ways to clean your hot tub filter and all are effective.

However, you will get different results with each method.


Please ensure you never clean your filter with any of the following:

  • Laundry Detergent
  • Car Wash
  • Dish Washing Soap
  • Any bubbly household soap

Any of the following methods for cleaning your hot tub filters will improve the quality of your hot tub water:

Hose Jet

1. The hose jet

Remove the filters from your hot tub and give them a good blast with water from your garden hose. Do this outside as it can get a little messy.

Be sure to spread apart each pleat and rinse well between them to get any dirt, hair, or other debris out. This will help keep the debris from building up and the chemicals from eating away at your filter material. By doing this, you will allow your hot tub filters to work more efficiently and last longer.

This only takes a few minutes and should be done at least once a week if you use your hot tub regularly.

2. The Chemical Rinse

Use a filter cleaner spray. These are a degreasing agent and are quite effective

Generously spray down your hot tub filters and let them sit for about 15 minutes. Then, rinse them down with clean water.

Spray the filters down with the cleaner and let them sit for about 15 minutes. This will allow the chemical to sink and do its job.

Then with clean water, rinse the filter thoroughly until all the soapy substance is gone.

Note: Make sure you rinse the filters really well.

Filter cleaner sprays can cause a lot of foaming in your tub when you put the filters back in

Hose Jet

Hose Jet

3. The Chemical Soak

Use a hot tub filter soak chemical, DO NOT USE HOUSEHOLD CLEANING PRODUCTS dilute the chemical with water according to the directions on the bottle.

Make sure you use enough water to completely submerge one filter. If you have room, you can add more filters to the solution.

Let the filter rest in the solution overnight or 24 hours.

After soaking, be sure to rinse the filters very thoroughly with clean water. Again, you don’t want foamy hot tub water.

  • 1. Rinse your hot tub filters with clean water every week.
  • 2. Chemical Rinse your filters using a standard filter cleaner every month.
  • 3. Chemical soak your spa filters overnight every month

Some people buy two sets of filters to switch between the two sets. This is a good idea and will extend the life of your filters.

If you have two sets of filters, leave one set to dry completely, while the other set of filters are working in the tub


A clogged filter can prevent your tub from heating up and might even burn out your circulation pump resulting in a costly repair because this is seen as a non-warranty Issue!

circular pump

Potential Frost Damage

Winter - Potential Frost Damage

If your tub is going to be left empty over the winter months or in a very cold climate where there is a possibility of sub-zero condition it is very important to remove all the water from the pipework and pumps as well as from the tub itself.

Water that freezes in the pipework and pumps can expand and crack the pipes and pump wet ends leading to major leaks which will leave your tub unusable and will need an engineer to repair.

Frost damage is not covered in the warranty on your tub