How To Shock A Hot Tub

What is shocking your hot tub and why would you do this. Almost sounds like your doing something bad or wrong to your hot tub. However, shocking your hot tub is the easiest way you can ensure that the water is safe and free from all contaminant.

When is it a good idea to shock your hot tub

It's a good idea to shock your hot tub after a period of inactivity or even heavy use. It's also good practice to shock your hot tub whenever you open it, even if it's only been a day since it was last used.

It's certainly a good idea to shock your hot tub before you use it.

So, why shock your hot tub?

The obvious reason, now that we have said shocking is the easiest want to ensure the water is safe, is to make sure the water is clean for you to soak in. If your water is cloudy, shock may take care of that as well.

What does shocking do to your water?

So, what does shocking your hot tub water actually do? We have said we need to do this to clean water and to do if your water is cloudy to make it clear - but what does it actually do.

Here are my top 3 list of what it actually does for you hot tub water: 1. Kills bacteria. When we take a hot spa in our inflatable hot tub we want to make sure we're staying healthy. Chlorine and bromine based shock compounds can easily kill bacteria growing in the water so it is safe. Bear in mind that if you use any other type of compound they may not do this. 2. Remove organic compounds from your water. If you use your hot tub regularly or have more people in it then organic compounds can build up quickly. If you want clear and clean water then removing these is a must. 3. Remove bromamines or chloramines from the hot tub. Adding shock once a week will help break the bonds that form these contaminants so they can easily be removed from the water.

What types of shock compounds are there

There are 2 main types of shock compound that I want to mention here. The first is chlorine shock and the second is non-chlorine shock.

Whichever one you choose they both have strengths and weaknesses. They should both be a part of every hot tub owners maintenance schedule.

Let's take a moment and talk about each one of these different types of shock treatment.

Chlorine shock

Chlorine shock disinfects your hot tub water as well as being an oxidiser. They should be used periodically, but not used every time you need to shock your hot tub.

If you're not careful, chlorine shock can be rather harsh on your inflatable hot tubs plumbing.

Chlorine based shock is best used when you first open your hot tub or when you change the water and when you need to give it a good cleaning after a heavy bather load.

Non-chlorine shock

The downside of a non-chlorine shock is that it won't disinfect your water. So, if you wanted to clean any potential bacteria, use your chlorine shock.

Non-chlorine shock is great at oxidising other contaminants and cleaning up the water.

This type of shock is recommended for regular use such as on a weekly basis to keep the water in great shape while you are using your spa on a fairly regular basis.

How to shock your hot tub

So, what is the process, the procedure you need to follow to shock your hot tub? It's quite a simple process, something you can do yourself. In essence, you just need to put in the correct amount of shock and let it do its magic.

Here are some steps to make the process more transparent for you: 1. First, you need to adjust the pH Level of your spa's water to be between 7.4 and 7.6. 2. Make sure the hot tub cover is off. It needs to be able to breathe while you are shocking your hot tub. 3. Turn off the bubble jets but leave the circulation pump going. Your water needs to be moving but not too much (which is why we need to turn off the bubbles). 4. Follow the instructions on your shock bottle to measure out the correct amount of shock for the number of litres/gallons of water in your hot tub. 5. Add the shock to your hot tub carefully. Be mindful of wind, etc as you need to be careful with chemicals. Any spilt you need to clean up. Also be careful it doesn't blow in your face, make sure you not facing into any wind when shocking your hot tub.

When is it safe to go into your hot tub after shocking

So, this is a tricky question to answer as there is no sure hard fast rule of when you can.

You need to test your water. The quickest and easiest way to do this is with some test strips. Using these and checking the levels against those on the packets will tell you when it's safe to get back in the water. Generally, this is when the chlorine levels have dipped down to 5 ppm.

How long will it take to reach these levels really depends on how much shock was used.

If you would like to get a little more info I would suggest watching this video (plus a few more on YouTube too).

Some final thoughts

You purchase a hot tub to have an enjoyable, relaxing soak. Cloudy, dirty water is not going to give you an enjoyable experience so learning to shock your hot tub is a necessary skill to master.

Add shocking your hot tub to your regular maintenance schedule and you will always have a fantastic time in your spa.

How To Shock A Hot Tub

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