Is It Worthwhile To Refurbish A Hot Tub?(Guide)

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Is It Worthwhile To Refurbish A Hot Tub?

Hot tub refurbishing is making a hot tub into a brand new one. Hot tubs comprise many materials and need proper time and attention to detail to bring them up to scratch.

If you’re in the market for a hot tub and want it to last for a very long time, then hot tub refurbishing might be the route to take.

Yes. Spas are an expensive purchase, and it can get costly to keep up with the upkeep. If you’re looking at a fiberglass shell, you will want to check for any cracks or dents that could be allowing water inside. This is especially true if you live where the temperatures fluctuate between cold and hot or get prone to prolonged periods of rain.

When thinking of refurbishing a Spa, the first thing to do is determine if it needs attention. You can fix most Spas to work again, but some will need more extensive work.

If you’re buying a used Spa, it’s always good to see the previous owner’s manual or contact the manufacturer for information about any service records. This will give you a superb idea of past doings.

When looking over the Spas’ interior, you are looking for a few key things. The chances are that the floor will need replacement due to cracks and chips.

If it has been impossible for the owner to keep this area clean, algae and mold may have started growing.

Fixing these leaks is essential so that your Spa can hold enough water. Usually, this is not an issue with shell Spas, as most already have a drainage system, but you will still want to check.

If the bleach smell is more intense in the hot tub, there may be a leak inside, and it needs caring. If there is mold on the walls, water could leak outside and fill up the spa.

How Do You Refurbish A Hot Tub?

Here is how you can refurbish a hot tub:

  • Begin by giving the tub a thorough cleaning.
  • Turn off the water and drain any remaining water out of the tub.
  • Remove all filters and cartridges and clean them using warm soapy water.
  • Remove any dirt inside each filter using downward pressure with your hands or a brush.
  • Dry out anything that needs drying with a towel or paper towels, then vacuum up any loose debris from work surfaces.

Having finished the cleaning, you are ready to refurbish your hot tub. First, remove any rust present on the steel components of the hot tub using steel wool and warm water.

If any parts need replacement, you can choose to replace them now or later. Next, apply some protective spray on all lower legs to prevent staining.

After completing the suggested work on your hot tub, you are ready for its reassembly. First, fill the hot tub with fresh water.

Then, begin reassembling the hot tub parts in the same order that you removed them—finally, plugin and switch on your hot tub.

All in all, refurbishing a hot tub can take a lot of time and effort, and money.

How Much Is It To Replace A Hot Tub Circuit Board?

It costs about $300 to replace a hot tub circuit board. This includes the cost of labor, parts, and any other charges necessary for the repair. It’s best to check with a professional or service provider.

When replacing the circuit board, the individual or company dealing with the repair must have all the tools they need and can carry out the task promptly.

Also, it’s essential to note that if something goes wrong with this repair, it could lead to more issues and a loss of hot water from your unit.

It’s best to invest in a professional to ensure they do everything right the first time.


  1. It is expensive. Replacement of the circuit board requires a certified technician, and sometimes, they can be hard to find.

Also, parts are not in the package, so you must pay for them.

This can add up quickly, but this may be your only option if you have an older tub, as it’s likely harder for firms to obtain parts for older models.

  1. You could experience a leak after replacing the board, and it can take some time to see if this is the case indeed.

Several other components rely on the circuit board, so if one of them does not work, you may not know it until a leak occurs.

  1. It’s hard to tell whether the hot tub circuit board is malfunctioning when you only get steady heat. This is not necessarily a red flag, but it’s good to be aware of it.


  1. You will get hot water. This is the most important thing to remember when getting this repair done.

If you have a circuit board, there is a reason behind it, and if it has stopped working, you need to get another one put in right away.

  1. You will not have to use way too much hot water as you usually would with a hot tub circuit board not working.

You can use a good amount of hot water without fear that the motor could fail.

  1. It’s an affordable repair. The cost to replace a circuit board can be less than $300, which comes down to.

It also does not necessarily have to be a hot tub circuit board that stops working, so if this is your problem, you can save money on repairs relating to the heater or the filtration pump.

  1. It will likely be easier to find a competent technician specializing in repairs for hot tub circuit boards.

Many individuals do not have experience with this type of repair, and it can be difficult for them to get the replacement that you need efficiently and adequately done.

If your hot tub circuit board has failed and is not delivering enough hot water to do what you need to do, replace it.

The costs associated with doing this are relatively low, and you will be able to get a professional to deal with the repair for you.

This is not the most expensive way to take care of this issue, so it may save money in the long run if you aren’t ready to make a significant investment in something costly.

Some of these repairs can be a bit more difficult as you will have someone knowledgeable in the field look at it, but it will be easy if you do this right.

What Happens If Hot Tub Pipes Freeze?

Here is what happens when hot tub pipes freeze.

In the winter, temps begin to dip below 32º Fahrenheit, which means that your pipes are now susceptible to freezing.

As a result, water will stop flowing freely and may spray out of the pipe when you open it.

And if water doesn’t leak, it might just be more complicated than usual to turn on your faucets. If you notice this, it’s time to check your pipes.

You can check for frozen plumbing by fanning spray water from the faucet with a towel.

It may take some time to get the water flowing, but if it takes any effort, then there is a good chance that someone will freeze your pipes.

Depending on the severity of the freeze, you may be able to thaw them yourself, or you may need to call an expert.

Either way, you will need to understand your water heater’s location regarding your plumbing so that they can thaw out easily.

If your hot tub’s pipes are above ground near the roof, take steps to clear away any snow and ice with a heat-treating broom.

If frost is covering any of your pipes inside your home, don’t try and scrape it away or pour boiling water on them.

If you’re worried that your pipes might freeze, preheat your house by turning on your bathroom and kitchen exhaust fans, lighting the oven, and keeping the dishwasher going.

You can also use a space heater to prevent frozen pipes.

Why Is My Hot Tub Humming?

Your hot tub is humming because there is a loose or broken wire inside the pump. This can be because of many factors such as water, ozone, or a component that has failed.

To fix your hot tub humming issue, you will need to replace the wire and check everything else in the system to ensure it is functioning correctly.

If you find that your hot tub hums because of an issue with dirt and debris, the best practice would be to have professionals come out and clean out your Spa.

Your first step is to take apart the pump and see if you can locate the loose wire. This will not always be easy, so prepare to troubleshoot by calling a professional.

Do not attempt to disassemble any other component unless you know what you are doing.

This also applies if you plan on replacing an individual component such as the capacitor or voltage regulator.

It’s best to use a hot tub repair manual if you plan on fixing your Spa on your own.

This will provide you with instructions on disassembling your parts before attempting to remove them from the inside the pump.

A lot of vacuum motors in hot tubs comprise a circuit board that controls the speed and amplitude of your motor. When this circuit breaks down, it can cause the pump to hum.

There are many reasons behind damage, such as water, ozone, or dirt particles traveling through a loose valve or wire inside the motor that causes this issue.

If you notice a leak in your motor, you will want to check the circuit board and the attached wires.

Let an expert check these components because they may get damaged beyond repair or inside a challenging location.

The next step is to check all the electrical connections on the pump and even your hot tub’s thermostat, if possible.

If your thermostat has been set too high, this can cause excessive vibrations throughout the tub that can cause your motor to sound like it’s humming.

This can cause many issues, like draining your hot tub batteries and an unreliable hot tub.

If you have a wet coil in your Spa, then you might want to replace it as soon as possible, if not sooner.

A broken connection on the control board can cause the same issue, especially if it’s a loose wire from something moving inside the pump.

The last thing to check on your pump is the voltage regulator.

A high voltage in your Spa will cause issues like draining your battery, overheating the water, and causing more damage to internal components.

This can also cause your pump to hum because of excessive heat and, in extreme cases, can even melt the plastic gears inside.

Have a professional service this portion of your hot tub when you are ready to replace a component such as the motor or capacitor.

To check the voltage regulator, place an accurate multimeter into the circuit and see if it’s running at a higher voltage than what it’s supposed to be.

Do Hot Tub Pumps Make Noise?

Yes. Sometimes, hot tub pumps make noise. Of course, it’s not a problem, especially if you’re using your hot tub at night when no one else is home.

If you’re wondering what causes the noise, it’s due to bubbles. Bubbles get produced by the water moving around and through the jets.

Depending on how powerful your pump is and how many jets it has, there could be a lot of bubbles or just a few bubbles per second.

In addition to making noise, the bubbles can create air turbulence and create a vortex. The vortex is a very low-density area of air that looks like a hurricane in the sky.

Your hot tub will suck you in through the vortex, but it doesn’t. It dissipates very quickly and often leaves you surfed up with more bubbles in your face than before. Just relax and enjoy them.

The bubbles also trap odors that the jets have captured. The good news is that the bubbling water helps release the smells into the atmosphere, where they dissipate.

The bad news is that you have to tolerate a bit of smelly water and your bubbles.

If there’s a lot of noise and odors and you think it’s time to clean the jets or air them out, here are some tips:

  1. Turn off your hot tub pump while cleaning the jets (this will help reduce the smell).
  2. Don’t use a vacuum to clean jets. You’ll get the bubbling water back and will have to do it again.
  3. Too much cleaning can cause too much pressure and damage to the jets, so be gentle and watch them closely.
  4. Let your hot tub air out as much as possible before using it again. This will also help with the smell.
  5. Don’t use your hot tub if it’s chemically exposed, especially to chlorine.
  6. If you didn’t use your hot tub for a couple of weeks, you might need to clean the jets and air them out before using them again.

What Is Purging Your Hot Tub?

Purging your hot tub is removing bacteria and other contaminants during routine maintenance. The most common approach to this is by using a granular shock treatment.

Hot tubs typically need purging every six months, except acrylic or porcelain-coated hot tubs, which can go up to one year between treatments.

Periodic purging preserves the condition and cleanliness of your hot tub and prolongs its lifespan.

However, it’s important to note other factors affecting purging effectiveness.

For example, the chemicals used to treat the water can also produce a strong odor which may cause people to avoid using your hot tub for an extended period.

This means that you don’t use your hot tub as often, and it does not receive any treatment—the dirt and bacteria buildup.

As a result, it’s vital to use a hot tub cover when not in use.

This will help keep debris from entering the water and prevent odors from escaping. In addition, leaves and other pieces of debris can clog the filter used for purging.

This can cause water circulation problems which severely reduce the effectiveness of the treatment used during maintenance.

To ensure your tub is clean and ready to use, one must use purging treatments regularly.

In addition, you can achieve the best possible results by using these treatments in combination with a hot tub cover.

Do I Need To Purge My Hot Tub?

Yes. You need to purge your hot tub after 3-4 months to avoid buildup and the possibility of slime in the water and at your tub’s bottom.

Purging takes 30-60 minutes and consists of sucking up all debris from the bottom of your hot tub (only vacuum if needed).

This allows us to keep it operating correctly by preventing a buildup that can lead to slime or discoloration in the water.

I recommend you thoroughly inspect before dumping your hot tub, especially if you are new to a hot tub and want to keep it looking its best.

To do this, I recommend using a small net that you can use to vacuum or scrub with to remove any dirt or debris.

In addition, you can use your chlorine test kit to check that there are no discolored areas on your walls, floor, or tub.

For more information, continue reading.

How To Purge Your Hot Tub

Step 1. Turn off all hot tub features (lights, jets, etc.) and drain water from the tank into a bucket.

Step 2. Turn on any needed features and remove all pool accessories (spotlights, speakers, etc.)

Step 3. Clean up with a pool scrubber or vacuum as needed

Step 4. Ensure that all drain hoses/valves are open and that the water is draining out of the hot tub properly

Step 5. Add water back to the hot tub (this water is for flushing out the system)

Step 6. Run a jet cycle for 3-5 minutes. More time may need adding if equipment sits longer than five months.

Step 7. Check the PH level of water and adjust if necessary. (Use a test kit on the wall of your hot tub)

Step 8. Run an empty cycle. (Turn jets on and make sure they are running)

Step 9. Add any chemicals to your water as needed/desired.

Why Does The Hot Tub Pump Surge?

The pump surges because it’s trying to produce the lost pressure when the water cools down. As the water gets colder, the air becomes trapped, increasing pressure.

The pump is trying to compensate for this by producing more power, which causes it to surge.

Once the water is a little warmer again, the pressure in the pump tank will subside as it starts producing more power to get back to its set pressure.

This happens when your water heater is cycling on and off. If you have any spa or hot tub that uses a pump system that continuously pumps the water, it can also happen.

Examples of this:

Windsor water heaters use spring water to heat the water, but the pump is not allowed to turn on until the temperature reaches 140 degrees F.

This forces the disc to create more and more pressure to get up to temperature.

Spa jets with a solenoid pump installed to operate at 12 VDC cannot operate if they don’t have enough voltage coming through them, causing them to surge.

How Do You Purge A Soft Tub?

You can purge a soft tub by filling it with water, opening up the drain, and adding a small amount of dish soap. You should now swirl the water around so that the soap breaks down.

Wait a few minutes, then start draining some dirty water out. You can refill it with more dirty soapy water until there is no more dirt on the bottom of your tub.

Then you can open the drain and drain the rest of the water out. After all this, you can close your tub and put it on a regular cleaning schedule.

There are other methods, but when a dishwasher is down to just 1-3 glasses of water (most people’s dishwashers will only run at 1).

You’re going to experience issues if you try to run your tub through that water. The glasses will not have enough water to wash the dishes properly.

The rack will also not submerge enough to scrape the bottom of the tub for all the stuck-on food and soap residue.

Additionally, if you run your tub through a few glasses of water when it’s empty, you’ll want to clean out your pump filter because it will start sucking up air.

That air can cause damage over time to your pump and motor.

I always recommend that people not put their dishes in the dishwasher until they’re ready to start running it.

That’ll give them enough time to make sure their tub is full of dirty water and soap before they need to be running the machine.

It also means I don’t have to spend time trying to troubleshoot the sanitation issues people get when they run their machines with a half-full tube or with just hand-washables.


Soft tubs need purging once in a while. I recommend doing it at least every three months to maintain the integrity of your hot tub.

However, when you purge your soft tub, make sure only to add water to the tub as dirty as your tub is typical.

You can add more if needed, but you should never put in water cleaner than you usually use.


Hi! I' am Tom. I was a manager in one of the biggest stores for over 10 Years, am also an SEO by night. I don't like to call myself a blogger; they are very analytical, do email marketing, and know all SEO stuff. I faced many questions from customers about different products, and there was hardly any help on the internet. After learning all the things about these products as a manager the hard way, I decided to start a blog and help other people.

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