Quite frankly, you should have a fairly regular cleaning schedule for your hot tub.

It’s no different to cleaning your kitchen or bathroom. Surfaces which are exposed to grease, oil, dirt and grime should be cleaned and sanitised to keep everyone nice and healthy.

Before you say it, yes, your hot tub will also be exposed to these kinds of particles. Unless you take a shower before hopping in, you’ll be taking all sorts in the tub with you, including; dead skin cells, oil from lotions and sun cream and dust and bacteria you have picked up throughout the day. It’s gross, but true.

Obviously, the chemicals in your hot tub water helps to keep it fresh enough for a few uses but they eventually become ineffective.

Different parts of the hot tub will require attention at different times so, without further ado, let’s take a look.

Check the Water Every Few Days

If you regularly indulge in a few hours of hot tub time, it’s a good idea to check the water every few days. This will involve both a visual and chemical check.

During the regular water check you should be looking out for discolouration, cloudiness or a layer of film resting on the top. If you see any of these signs, it’s time for fresh water.

Clean off tide marks around the edge as soon as you spot any. Keeping on top of this will prevent a build-up of scale which could prove trickier to clean.

Test the Chemical Balance

If the water is still nice and clear, test it for chemical levels to make sure it’s still sanitised. Use a test strip or liquid test kit to find the alkalinity, chlorine/Bromine, calcium and pH levels. If any are slightly out, adjust as necessary to make sure the water continues to be safe to use.

Note: If you are adding multiple chemicals into the water, do it one at a time and leave a space of about two hours between each one. This gives the chemicals time to adjust and avoids any negative chemical reactions. 


Aim for a pH level between 7.4 and 7.6. Anything lower could damage parts and irritate your skin and eyes. On the other hand, anything higher will reduce the effectiveness of the sanitiser and make the water prone to cloudiness.


This should be between 125ppm and 150ppm. If it gets too high your water could be prone to cloudiness and cause scale build up.


Add according to instructions for optimal hygiene. Test the water again to check that the sanitiser hasn’t knocked out the pH and alkalinity levels.

Clean the Filter Every Month

In order to keep your hot tub in tip top condition, it’s a good idea to clean the filter every month. This will avoid a backup of limescale, dirt and unwanted chemicals and keep your water nice and clean.

If you are really on the ball, however, you could follow the rinse/spray/soak method to keep on top of the filter clean:

  • Rinse
    Do this as often as possible using warm water or the garden hose. It’s a good idea to get into the habit of giving your filters a rinse after every use.
  • Spray
    To provide a deeper clean spray with a hot tub filter cleaner once a week. Rinse the filters after.
  • Soak
    Every time you drain and refill your hot tub give the filers a good soak in a chemical cleaner. This will loosen any particularly stubborn scale and hopefully extend the life of your filter. You will need to give the filters a thorough rinse afterwards to wash all of the chemicals and debris away.

Keep the cover clean

Whilst you are out there cleaning your filter, give your hot tub cover a once over too. Not only will it look smarter, but it will also help the cover to last longer.

Hot tub covers are there to keep the heat, water and chemicals in and everything else out.

A damaged cover could let in leaves, rainwater or animals which would contaminate the water. We’ve all seen what a paddling pool looks like once it’s been left out for a couple of days. A bit sad, a bit neglected and incredibly unappealing!

Drain and Deep Clean Every Four to Six Months 

If you are a regular weekend hot tubber you will want to do this every four months. If you leave the hot tub as a special treat a couple of times a month it can be left a little longer, but never more than six months.

Drain the water and inspect each jet and interior shell components for damage, grime and dirt. Give your tub a really good clean, get into all the nooks and crannies (with a toothbrush if you have to) until it is spic and span.

White vinegar, baking soda and diluted bleach are handy household cleaners which will work a treat. Although, if you are cleaning the plumbing, always use a hot tub line flush product.

Once this job is done, refill the tub with fresh, clean water through the filter compartment to avoid air locks.

Tip: when using a hose to fill the hot tub, allow it to run for a couple of minutes before adding it to the tub. This will allow any debris to be washed away and not added to your hot tub.

Carry Out a Yearly Maintenance Check

Once a year, you will want to give your hot tub a maintenance check to make sure everything is still in good working order. A bit of TLC avoids the build-up of scale and bacteria within your system.

This will prevent a big repair bill in the future due to faulty parts and will keep your tub running efficiently. Which is especially important from a hygienic point of view!

Call the Professionals

If you don’t fancy having to clean and maintain your hot tub yourself why not ask us to do it for you? Hot tubs are a luxury item, so you don’t want to risk damaging or neglecting it.

We have, three service packages on offer. Ranging from a basic inspection of your hot tub, right through to our premium package which includes a full cleaning and treatment service.

Get in touch today if you would like to avoid having to put in the elbow grease yourself!