Frequently Asked Questions
Learn more about your hot tub or swim spa.
Finding the Best Hot Tub
You buy a hot tub to enjoy, not to maintain it. Maintenance levels can vary greatly, depending on the type of water management system, the quality of the skirting (exterior sides) and cover, and the quality of the electrical components and pumps.
A high quality water management system will run 24 hours a day on a circulation pump. This ensures continuous filtration, especially when you are in the spa. It will also utilize an ozonator. This creates ozone, an unstable molecule that destroys bacteria and lowers the need for chemicals in your spa. The best systems will mix this ozone with the water within the plumbing system, returning clear, clean water to your spa. If the ozone is injected directly into the spa, it does not mix well with the water, lowering the effectiveness-plus these systems shut off when you enter the spa, just when you want them to be on! Having a high quality water management system will save the most time in spa maintenance.
The skirting and cover quality will affect how much time you spend keeping your spa looking good in your backyard. Most reputable spas will come with a vinyl coated cover that will withstand UV, rain, and dirt. They need to be cleaned every few months and can be treated with cleaners and protectants just like the vinyl in your car. The skirting of spas was traditionally made of wood. The trouble with wood is that it looks great when it is new, but it is horrible to maintain. It is fragile and needs to be re-stained every 4-6 months. New synthetic materials make this job easy as most can be cleaned with a hose and require little or no other maintenance. New advances in materials are allowing spa manufacturers to offer several solutions to match your backyard.
Quality electrical components are important in spas, just as they are in any other household product. If it breaks right away, you are spending time trying to schedule service instead of enjoying the spa experience. Check the track record of the company you are doing business with and request referrals from your local dealer. Make sure that the customers that have had the product for a long time are still satisfied. Don’t be fooled by stories about Horsepower, number of jets or pumps, etc. What is important is that the product satisfies your needs for years to come.
This is a question that every potential hot tub owner should ask. Otherwise you could be saddled with a huge electric bill after getting a “great deal” on a hot tub. Most high quality hot tubs should not cost more than $25 per month to operate, but the monthly costs can vary $50 or more, so ask the question! Most manufacturers will offer energy guides to show you what the approximate cost will be. If they don’t – BEWARE. Energy costs will also vary by time of year, as you will use more electricity to keep your hot tub warm in the winter than in the summer. The key variables that will add cost to your purchase price, but save you money over the lifetime of the product are: insulation, filtration, and heating.
The insulation of the product (or lack thereof) has a huge impact on your electricity bill. Full-foam insulation (where the entire cavity under the spa is filled with foam) is by far the most insulating option. Many companies will only partially fill the cavity, or even leave it open and only insulate the panels on the side of the spa. The story you will get from these companies is that leaks are difficult to fix if you have full foam. That’s true, it is more difficult. So would you rather have a well-insulated spa designed not to leak, or a poorly insulated spa designed for leaks?
Your spa uses electricity to turn on pumps and filter the water. The most efficient process for this is the 24 hour circulation pump. This pump uses a fraction of the energy of a big jet pump, and keeps your water cleaner. Bather load will also affect how often you need to filter, increasing or decreasing your energy consumption.
The heater in your spa will also make a big impact on your energy bill. Heaters that only have one setting will always heat at the same rate. Heaters that can operate at several different wattage levels will only expend as much energy as needed to heat the water, instead of always giving full power. Also, fast-flow narrow heaters are more efficient than heaters found in slow flow wider tube heaters. The thin flow of water over the heating element will heat the water faster and more efficiently than a thicker flow of water flowing more slowly. Ask your dealer about these components in your spa.
Warranties vary from manufacturer to manufacturer. Request a copy of the warranty for any hot tub you are interested in purchasing. The key components to look for in the warranty are the hot tub shell (typically at least 5 years against leaks/failure), the plumbing (typically at least 3 years), and electrical components (typically at least 5 years). These are the main areas you should be concerned about, but read all of the fine print. Typically, there is no service charge for warranty items unless you are a certain distance from your dealer. Also, do not just count on the warranty. If your dealer is no longer in business when you need warranty service, or if the dealer had bad service reputation, you will have a harder time getting your hot tub fixed. Remember, you are buying the retail company, the manufacturer, and the hot tub when you make a purchase. Do your homework and make sure you are happy with all of them.
Let's Get Technical
People ask this question, even after hearing the sales pitch, because they still question why these are important. Like buying a car, the horsepower number is not actually important. In this case, neither is the number of jets. These are just marketing numbers, often used to distract you from the real performance of the product, what is important is that the SYSTEM is designed to give you the best possible hydrotherapy massage. This requires the horsepower to be balanced with the size of the plumbing and the number of jets. Larger pumps and plumbing allow manufacturers to add more jets per pump to a hot tub design. Too many jets without the proper horsepower of plumbing will result in poorly performing jets. Too much horsepower with plumbing that is too small or with too few jets will result in a waste of power, and you will be paying an electric bill for big pumps that are not giving you the therapy that you want.
The bottom line – don’t get obsessed about the numbers. The top manufacturers employ certified engineers to balance the plumbing system, place the jets in optimal locations, and decide which EXPERIENCE is best for you.
We talked a bit about ozone in the question about the cost of running a hot tub. Now that you understand better why a water management system is so critical to your hot tub experience, let’s talk in more detail about ozone.
Ozone is an O3 molecule. It is typically created by passing oxygen over an ultraviolet bulb or a corona discharge chip. This creates the unstable ozone molecule, which will eventually stabilize to not only kill, but burn up organic material (bacteria, dead skin, or other great stuff that can be introduced into your hot tub!). By adding an ozone system to your hot tub, you can use the ozone to do some of the purification process for you, reducing the need for chemicals.
What are the differences between ozone systems? There is a critical difference that determines how effective your ozone is at attacking organic material. Most ozone systems are added into the spa and inject the ozone stream directly into the hot tub body of water. The ozone then quickly rises to the surface, not coming in contact with very much water, and therefore not doing very much purifying in your spa. Not only that, but the longevity of ozone is much longer in air than in water. So you now have a layer of ozone in between the water surface and the bottom of your cover (you can smell this ozone build-up when you lift the cover). This ozone eats holes in your pillows and covers over time, and allows water to get into the foam of your cover, causing it to become waterlogged.
An ozone system that is incorporated into a water management system will introduce the ozone into the plumbing of the spa, it will then take the ozone and water and vigorously mix the water and ozone in a mixing chamber; leading to a much higher level of purification because every molecule of ozone touches more molecules of water. Then, this mixture of ozone and water will be run though several feet of plumbing that is designed to allow the ozone to change back into oxygen before it enters the hot tub body of water.
Understand this – Humans are organic material, just like bacteria. Breathing ozone will start to irritate your throat. The first ozone system we described turns off the second you touch the spa control. This is because this system is not allowed to run while you are in the spa (so that you don’t breathe the ozone). But you have to ask yourself – when do you want your water to be clean? – When you are in the hot tub! The second system is safe for use when you are in the hot tub, and runs 24/7, keeping your water crystal clear and clean and creating a safe environment for your family.
You want convenience to get to, yet a private place where you can soak in peace. So try and place it close to the door you will most frequently use to gain access to your tub. Make sure the side where you will access the tub is open and allows for safe entry into the spa.
The hot tub should be placed on a surface that can support its weight. Concrete pads are ideal material, but firm ground, decks, and gravel are also suitable – IF they can support the load. Always consult a licensed contractor if you are concerned about the placement of your hot tub. Landscaping for your hot tub will make it look like part of your backyard. Decking, plants, pots, and other backyard items are great in helping achieve a great look. Just make sure that you leave plenty of room to get in and out of the tub, and that the plants do not get into the hot tub water!
Health Benefits of Hot Tubs
You have two options when considering how to manage your spa in the winter. Most people buy their hot tub with the intention of using it when the outside temperature is coldest. This is when it is the most enjoyable! Also, keeping hot water in your tub is the safest way to prevent freezing damage.
If the outside temperature is just too cold, or if the spa is not in use in the winter months, then the best option is to drain and winterize your hot tub. We recommend that you work with your dealer on winterizing your spa to insure that it is done properly. Improper winterization is not typically covered under your warranty.
As with winter use, the safest situation for the longevity of your hot tub is to leave the water in it and keep it running at optimal levels. The difference with summer is that you can turn the temperature down, save energy, and enjoy a “cool tub” in the summer months.
Again, if you must drain your tub, please consult your dealer for help with the procedure.
New Hot Tub FAQs
Be careful when unwrapping your new spa. While the protective cover is very durable, it is thin and a blade can damage the spa. Use scissors and trim up along the corners carefully to loosen the bag and remove it.
When you receive your spa, the electrical GFCI should already be in place. Please refer to the Owner’s Manual for more information on the GFCI.
It is a good idea to have the electrician onsite at the time of spa delivery to address any problems or concerns that may arise. The electrical connections to the spa can be made once the spa is set in the desired location.
The electrician will need to access the equipment area to hook up the spa. The Owner’s Kit will be found in the equipment area. Take a minute to go through the kit, verifying its content including the Owner’s Manual, Water Care Guide, Spa Warranty registration and hose bib.
- Read through your Water Care Guide and the start-up section of your Owner’s Manual. It will explain important steps to be taken before filling the spa.
- Verify you have the necessary chemicals for a proper “first start-up.”
- Confirm with your dealer that your local water source does not need any special pre-treatment prior to normal start-up. Fill the spa with water.
- The pH affects the chlorine level and alkalinity affects the pH. Therefore it is important to adjust the total alkalinity first, then the pH and then the chlorine level, in that order. After each use, add two tablespoons of Dichlor (the chlorine additive for your spa) and run the spa for 10 minutes.
- With the pumps running, check and adjust: Total Alkalinity between 125 and 150 parts per million, pH level between 7.2 and 7.6
- Now “super-chlorinate” your spa. Super-chlorinating means that you need to add Dichlor to the water until your chlorine indicator gets up to 10 parts per million (Do not use Bromine with a D1 supplied Vision cartridge!). You can also use any “Flush” products to ensure your spa is clean on startup. Follow the instructions on the Flush product of your choice. This step is only necessary for first time fill-ups or for spas that have been shut down for a period of time. You do not need to do this during regular refills.
- Operate your spa’s circulation system for at least two hours.
- Dimension One recommends that you drain your spa and re-fill it. This will make sure that you are off to a clean start with your new hot tub!
- Rinse out your Vision cartridge to remove any loose dust or fragments that may have been created during shipping.
- When installing your Vision cartridge (48 hours after adding Sequestrant is strongly recommended), be sure to adjust the reminder date ring on top.
- Once the spa is filled, be sure to check the box containing your spa’s cover. Verify the warranty is in the box as well as the clips that are used to secure the cover straps to the spa.