FAQ on Hot Tub Water Care

Whether you’ve just purchased a hot tub or you’ve had one for a long while now, it’s common to come across questions regarding the water care.

To help you out with some common issues, here are some of our most frequently asked questions on hot tub water care:

Why is My Water Cloudy?

If you open the lid of your hot tub and find that the water is cloudy, it’s most likely because there are unwanted particles in the water that are making it dirty. 

This is due to not having enough sanitizer (chlorine or bromine) in your water.

To make your water sparkle again, you need to shock it with either a chlorine shock or with an oxidizer. This will kill off the particles that are making a mess out of your water.

If your chlorine levels are stable and within the recommended range, it’s possible that your water is cloudy because the cartridge filter needs to be changed.

After a certain point, they get too dirty and can’t pick up all the dirt and grime from the water.

Another reason why your water is cloudy might be because it simply needs to be changed. After a certain point, it doesn’t much matter what chemicals you put into it, nothing can be done to clean the water. In this case, you can either do a partial or full water change.

Why is my Water Foaming?

Water foams up from two things: bacteria and suds.

The best thing to do in either of these cases is to shock the water with a chlorine shock or oxidizers to ensure there is no bacteria.

The fastest way to get rid of foam is to use Foam Away. This will instantaneously eliminate all the foam in your water.

When Should I Change my Filter?

Hot tub cartridge filters are what pick up the unwanted particles in the spa to keep the water clean. So, it’s important that they’re changed out so your water can be as clean as possible.

You should change out your filter every 5 – 6 months, depending on its cleanliness. If after 4 months your filter is filled with grime, it’s best to change it out, or at least give it a deep clean.

How Do I Clean my Filter?

You should clean your filter every 6-8 weeks depending on how much you use your hot tub. If you use your hot tub quite often, then you should clean your filter more frequently.

One of the easiest ways to clean your filter is to soak it in Aqua Filter Free. This product is a concentrate that removes grease and grime with little to no effort on your part. All you have to do is fill a pail with water, add the appropriate amount of product, then soak your filter for a couple of hours. After soaking your filter, rinse it out using a hose.

Another way to clean your filter is by using a power washer. This is one of the fastest ways to clean out the debris that can often accumulate between the folds of the filter. Note that if you are using a power washer, you must spray on an angle to not damage the filter.

How Often Should I Change my Water?

The level of your spa’s total dissolved solids (TDS) is a major indicator for when you need to change your water. It’s best to change your water when the TDS reaches 1,500 ppm, though you can get away with a TDS of up to 2,000 ppm. Any higher than this and you need to change your water immediately.

When your TDS becomes too high, the effectiveness of the chemicals drops and your water becomes more and more difficult to keep clean, resulting in cloudy water.

How Often Should I Bring my Water in For Testing?

The answer to this question is based on how comfortable you feel with water chemistry. Figuring out how much of each chemical you need can be difficult, so we recommend first-time hot tub users to come in around once every 1 – 2 weeks. 

Once you feel comfortable taking care of your water chemistry on your own, it’s best to come and get it checked once or twice a month.

If you have any other questions, contact Valley Pool and Spa for more help! We’re always happy to help you with all your pool and hot tub needs!

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