How to treat the hot tub water

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Last updated: 
January 30, 2021
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If you want your hot tub to deliver high levels of relaxation and fun, then you are going to need to make sure that you keep it in perfect condition. On this page, I want to run you through a few of the things that you are going to need to think about when it comes to the treatment of your hot tub.
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getting ph levels right

To start with, I am going to assume that your hot tub is filled with water already. If it is, then you are going to need to make sure that you check the PH levels at least twice a week. If you can do it more often, do it, but twice a week should be enough.
You will want to ensure that the PH of the water is somewhere between 7.2 and 7.8. If the PH is a little off then you will need to use one of these products:
You need to have at least two:

  1. The one which can lower the PH
  2. The one which can raise the PH
shocking the water

You will also need to shock your hot tub water every week. To shock means adding one of two different chemicals to your water. The amount that you add will depend on the size of your hot tub. You can choose either Bromine or Free Chlorine.

hard water is a problem

If you live in an area that has hard water (i.e. high in calcium or other minerals) then you will want to throw some descaler into the hot tub on a weekly basis. This will stop build-up in the pipes and filters and ensures that your hot tub remains in tip-top condition.
If you see foam starting to appear (and this will happen quite a lot with high usage), you will need to use a de-foaming agent. It is important to use your chemicals to ensure that the water remains clean. A dirty tub is an unsafe tub (you will be surprised at what bacteria can be found in dirty water).

foamy water

Your water will need to be changed at least once every six months. If you use it quite often then you may want to reduce this to once every two months. Whenever you change the water, you should always clean the tub completely. Don’t forget to use some descaler! This will not only keep it looking fantastic, but it will also ensure that it stays in perfect working order.

Whenever you are using the hot tub, you will want to make sure that everybody who will be using it showers beforehand. It is the lotions that are used on the body which causes the foaming that I mentioned previously. Showering will wash off most of these lotions.

swimwear only

It is also important that people only use swimwear, no other clothing. Other clothes are not treated for water use and can actually mess up the chemical balance, as well as create even more foam. Not just that, other clothes can make the hot tub leak by tearing it with zips, buttons or rivets.

Finally, make sure you have a cover on your hot tub at all times. It will not only keep the water clean, but it will also lock the heat in. This will save you a lot of money on your energy bills! Don’t forget to condition your cover every couple of months. This will stop it from cracking.

How do I clear a cloudy hot tub?

In short:

  1. Shock it with chlorine
  2. Use a water clarifier for hot tubs

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