The ideal range of chlorine for hot tubs is 2-3ppm to ensure sanitized and clean water, making it safe for soaking in. When the chlorine level is lower than 2ppm, the water is unhygienic to sit in.

What if the level of chlorine is higher than 3ppm, or there is too much chlorine in hot tub? What will happen and should you go in? Read on to have useful advice from us!

This post may have affiliate links, which means I may receive commissions if you choose to purchase through links / provide (at no extra cost to you). As an Amazon Associate, I earn from qualifying purchases. Please read my disclaimer for additional details.

Is it safe to go in a hot tub with high chlorine?

It’s a NO, for sure. When the levels of chlorine are higher than 3ppm, you can get itchy skin and red eyes. Some people can face respiratory issues when exposed to too much chlorine.

Never get in hot tubs with chlorine levels higher than 5ppm, as it can lead to chlorine poisoning.

Excessive exposure to this type of disinfectant might cause symptoms like rashes and nausea. Some people can suffer from coughing, vomiting, or even shortness of breath.

Signs of a hot tub with too much chlorine

eye and skin discomfort

Many of us are usually tempted to assume that there is too much chlorine in hot tubs when we notice a strong chemical smell or experience eye and skin discomfort.

However, these are not really the signs of high levels of chlorine. They are more likely caused by pH or copper, chloramines or bromamines (the built-up substances after chlorine or bromine kills contaminants and bacteria).

The most reliable way to identify whether you’ve got an inordinate amount of this substance in your hot tub is using hot tub test strips. This method can tell you if the chlorine in your hot tub water is still doing its job.

What makes the chlorine level go high?

Sanitizing hot tubs requires only a small amount of chlorine, so we can sometimes mistakenly put more chlorine in the tubs.

Shocking the hot tub is one of the common ways to get rid of bacteria and microorganisms. However, we might miscalculate the chlorine tablets or granules in our hot tub when shocking it.

We sometimes do it even without our notice. An over-chlorinated hot tub is a common issue for most hot tub owners, and fixing it is not too difficult if you follow the below tips.

What to do if there is too much chlorine in hot tub?

So you have used the test strips and got the test results. Now you know if the chlorine levels in your hot tub water are too high or only slightly high. What to do now?

Adjusting the amount of chlorine is straightforward. Depending on your situation, you can follow these suggestions.

1. If the chlorine level is only slightly high

You do not need to do anything. Just wait! Do not add any more chlorine in the hot tub, and do not get in the tub during this time.

The chlorine will just dissipate naturally. Depending on how much chlorine you have put in the tub, it can take a few hours to one or two days for this sanitizer to evaporate itself.

After two or three days, you can use the test trips for another test. If the chlorine level is still high, it’s now time for an adjustment.

Alternatively, let the sunlight help to reduce the chlorine levels. If your hot tub is outdoor and you usually cover it, you might want to uncover it for about three to four hours. If it is indoor, open the doors or windows to let the ultraviolet dechlorinate your hot tub water.

It’s important to note that if you use this method, make sure to have regular monitoring so you can re-test the water and take necessary actions if needed.

2.  If the chlorine level is high

After removing the hot tub cover, both chlorine and water level are likely to evaporate, making it easier for you to fix the issue.

However, if it is not a sunny day and your hot tub water is still full, your chlorine readings are still high, you might need to remove some of the water.

Next, you can dilute your hot tub water by partially draining it, then adding in some freshwater to lower the concentrated chlorine, then wait for a while, and test again.

This method is time-consuming, as it affects the pH and alkalinity levels, which means you’ll need to re-test after diluting to get the desired results. Given this, it is best used when your current hot tub water has not been in the pool for too long.

What if the existing hot tub water has sat for about two months or more? It’s best to completely drain, thoroughly clean, and then refill it.

What if you find it hard to balance the water chemistry? It is another sign that the water is highly unstable and needs a proper drain and clean.

3. If you are in a hurry

hot tub test strips

You’ve got a long and hectic day at work, and you only want to soak in the hot tub for 15 minutes to relax. Unfortunately, you’ve just tested the water, and its chlorine level is high. But you do not want to wait for the chlorine to evaporate.

Well, you don’t have to if you’re in a hurry. Why waiting whereas you really want to indulge yourself in the tub after a tiring day?

The easiest solution is using a chlorine neutralizer. As the name suggests, this product works effectively as a quick fix, helping to neutralize chlorine levels in hot tub water in no time.

It’s important to make sure that you do not overdose, so follow manufacturers’ directions shown on the pre-packed labels.

As chlorine lowers the pH levels, hot tub owners should base on the readings on test strips to gradually and carefully add the chlorine neutralizer.

Last words,

Too much chlorine in a hot tub can cause problems to your skin, eyes, and respiration. Given this, never get in hot tubs with chlorine levels higher than 5ppm.

Diluting water or draining and refilling the hot tub are some solutions to fix the over-chlorination issue. We hope this article has offered helpful advice to solve this common problem that most hot tub owners face.


Leave a Comment