Can You Use a Hot Tub in the Rain?

Hot tubs are often celebrated for their ability to be used year round. Unlike a full sized swimming pool, a hot tub can be operated throughout the winter without the worry of the water freezing over. In fact, a lot of Canadians say their hot tubs get more use in the winter than they do in the summer. But can you use a hot tub in the rain? Rain is not a reason to stop using your hot tub. However, you need to ensure that you won’t be exposing yourself to lightning. Lightning and thunderstorms could lead to the possibility of severe injury or death. In order to give you a better understanding of the multi-season uses available to hot tub owners; we’ve put together this post.

Can Rain Affect Hot Tub Water Chemistry?

While there’s no immediate danger of using your hot tub when it’s raining (as long as there’s no associated lighting) if exposed to rainfall for long periods of time, your hot tub water chemistry will eventually be affected.

This happens for two reasons: one is that rainfall is typically acidic. Since the ideal pH range for a hot tub is between 7.4 and 7.6, slightly on the basic side, large amounts of rainfall may cause the hot tub water pH to fall below the recommended level.

The other way that rainfall can affect the water chemistry is by diluting the concentrations of chemicals found in the hot tub water. Of course, it will take a large downpour for the dilution to be noticeable, but it’s still possible.

For these reasons, if it’s raining and you’re not using the hot tub, it’s best to cover it up before the rainfall starts to affect the water chemistry. If you’re using the hot tub and a lot of rain is getting into the water, you’ll just need to test it more often to ensure the pH and total alkalinity levels don’t fluctuate too much.

Tips for Using A Hot Tub When It’s Raining

The fact is that it can be quite pleasant to spend time soaking in your hot tub during a light rainstorm. But there are ways to make it even more comfortable.

One way to prevent too much rainwater getting into your hot tub as well as providing you with some shelter is to erect a large umbrella. This will keep the rain off your head while reducing the effects that the rainfall will have on the hot tub water chemistry. It can also double as a parasol on hot and sunny days.

Being in a hot tub during a rainstorm is generally comfortable – you’re protected by the warm water. It’s the getting in and out of the hot tub that can be a little uncomfortable. To get around this it’s always nice to have bathrobes and slippers available for the walk from the house or changing room to the hot tub. This will reduce the chances of slipping and falling while also protecting your skin from the cold rain.

If you don’t have an umbrella or other type of shelter, wearing a wide brimmed hat can provide some protection from the rain. Having hot drinks in hand can also make the walk to and from the hot tub during a rainstorm less of shock to the system.

Post Rainstorm Duties

Once you’re finished your rainstorm soak you might want to do a quick water test to see if the water chemistry has been affected by the rain. If that doesn’t really appeal to you at the moment, just make sure to replace the cover as soon as you’re done and make a mental note to test the water before you use the hot tub again.

Now that you’ve learned more about using a hot tub in the rain, download a free buyer’s guide for more information.

HT Guide

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