How to get (and keep) a healthy water chemistry

There are basically two things you need to keep an eye on regarding the chemistry of your spa water: Chlorine content and pH.

Chlorine in the water helps fight bacteria and algae. Therefore, it is important for hygiene that the chlorine content of the water is always in place.

The pH value is crucial for both limescale deposits in the spa and algae growth. If the water is too alkaline (pH above 7.5) you risk clear limescale deposits in your spa. At the same time, the effect of chlorine in the water is greatly reduced if the pH value is too high.

Well, enough about the scientific stuff … let’s get a handle on that water!

We have made a plan for you so you know when to do what to get the most hygienic water in your spa.

Remove visible dirt and grime from the water

We recommend using a bottom vacuum to get as much precipitate out of the water as possible. A surface skimmer also makes it easy and quick to remove leaves and the like from the water surface.

Make sure the spa cover is properly attached and fully secured

It keeps dirt out of the water and at the same time keeps the heat better, so you save on the electricity bill.

Look for visible changes in the spa and in the water

Also keep an eye on the changes that may occur over several days. It is a good idea to take pictures continuously to be able to compare the development over a period of time.

Check the chlorine content and pH of the water

You do this with our test strips, which measure both chlorine and pH value.

Keep the whole strip in the water for approx. 5 seconds, pick it up and let it dry for 15 seconds. Then compare the colors on the strip to the guide on the test strip package.

  • pH value should be between 6,8 and 7,2
  • The chlorine content should be between 1 and 2 mg/liter

If the pH value of the water is too high, you can use pH-Minus to get the water down to the right values. Conversely, if the pH is too low, you can fix it by pouring fresh water into the spa.

If there is a lack of chlorine in the water, use chlorine granules or chlorine tabs to get the right value.

Clean the filters

The filters take care of removing small particles and impurities in the water, and therefore it is important to clean these as well. Take them out of the spa and clean them in a bucket of water and Filter Clean. After thorough cleaning, put them back in.

Finish by examining the water for larger particles on the bottom of the spa and in the water in general. You can conveniently use a bottom vacuum cleaner to remove any impurities on the bottom.

Test that the system runs flawlessly

Check if the pipes are leaking, listen for noise from the pumps, etc. Please see the manual for your spa to see how to do a system test.

Clean all the way around the waterline

Use a soft cloth or a sponge.

Make sure the water level is correct

The water should go approximately to the middle of the skimmer opening.

Change the water in the spa

Even if you follow this guide, it is always a good idea to provide fresh water from time to time.

You can use the Spa Cleaner at the same time, as you still have to empty the spa of water after using this.

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