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Swimming Pools

  • Why Is It Called an Infinity Pool?
  • What Pool Type Is Best?
  • What Pool Depth Is Best For My Pool?
  • What Is The Pool Drain At The Bottom Of A Swimming Pool For?
  • What is the Most Popular Pool Size?
  • What is the Most Popular Pool Shape?
  • What is the Most Low Maintenance Pool?
  • What is the Most Expensive Part of Building a Pool?
  • What is the Difference between Pool Tile and Regular Tile?
  • What is the Cost to Install a Deck?
  • What Is The Cheapest Pool Decking?
  • What is the Best Way to Finance a Swimming Pool?
  • What Is The Best Decking To Put Around A Pool?
  • What is a Natural Pool (NSP)?
  • What Is A Good Size Pool?
  • What Are The Pros And Cons Of A Fiberglass Pool?
  • Should I Paint Or Replaster My Pool?
  • Should I Get A Deep End In My Pool?
  • Is Pool Painting A Good Idea?
  • Is Pool Investment Bad?
  • Is It Harder to Sell a House With a Pool?
  • Is Homeowners Insurance More Expensive With a Pool?
  • Is a Pool Worth the Money?
  • How Much Pool Evaporation Is Normal?
  • How Much Does It Cost To Have Someone Install a Pool?
  • How Much Does A Swimming Pool Affect Your Electric Bill?
  • How Long Does It Take To Build a Pool?
  • How Does a Swimming Pool Chlorinator Work?
  • How Does a Negative Edge Pool Work?
  • How Do Pool Skimmers Work?
  • How Can I Lower My Electricity Bill With My Swimming Pool?
  • How Can I Afford a Pool?
  • How Are Fiberglass Pools Made?
  • How Are Concrete Pools Made?
  • Does a Swimming Pool Add Value To Your Home?
  • Do Vinyl Liner Pools Look Cheap?
  • Do I Need A Pool Fence Around My Swimming Pool?
  • Do I Need A Permit To Build A Swimming Pool?
  • Do Fiberglass Pools Look Cheap?
  • Can You Change Your Existing Pool Shape?
  • Can Pool Lights Electrocute You?
  • Can I Build a Pool at Any Time of the Year?
  • Are Vinyl Pools Cheaper than Fiberglass Pools?
  • Are Vinyl Liner Pools Good?
  • Are Infinity Edge Pools More Expensive?
  • Are Gunite Pools the Best?
  • Are Fiberglass Pools Worth The Money?

Pool Maintenance

  • Will Baking Soda Clear Up A Cloudy Pool?
  • Why is the Bottom of My Pool Always Dirty?
  • Why is My Pool Cloudy
  • Why Do I Have A Green Pool After I Shocked It?
  • What steps do I take to open my pool?
  • What Should My Pool Chlorinator Be Set On?
  • What Pool Chemicals Do I Need to Open My Pool?
  • What Order Do I Add Pool Chemicals?
  • What Is Underneath A Vinyl Pool Liner?
  • What is the Easiest Type of Pool to Maintain?
  • What Is The Best Pool Resurfacing Material?
  • What is the best Phosphate Remover for Pool Contractors?
  • What is a Pool Inspection?
  • What If My Pool Has Too Much Chlorine?
  • What Do You Do After You Shock Your Pool?
  • What Chemicals Do You Need For A Saltwater Pool?
  • What are These Brown Stains on the Bottom of My Pool?
  • What Are Some Good Chlorine Alternatives?
  • Tips For Protecting Your Pool From Freezing
  • Should Pool Skimmers Be On All The Time?
  • Should I Winterize My Pool?
  • Should I Do A Pool Shock If My Chlorine Level Is High?
  • Should I Do A Pool Backwash After Shocking My Pool?
  • Pool Filter Multiport Valve Settings Explained
  • Pool Chemical First Aid Tips
  • Is There A Chlorine Shortage?
  • Is It Safe To Swim In A Cloudy Pool?
  • Is It Ok To Turn Your Pool Pump Off While On Vacation?
  • Is It Ok To Swim In A Dead Algae Pool?
  • Is It OK To Run Your Pool Pump 24 Hours A Day?
  • Is It Easier To Maintain Salt Water Pool?
  • How To Shock A Pool?
  • How to Raise Pool pH?
  • How to Lower Pool pH?
  • How to Lower Pool Alkalinity?
  • How to Drain a Pool?
  • How Often Should You Replaster a Pool?
  • How Often Should You Do A Pool backwash?
  • How Often Do You Need To Resurface A Gunite Pool?
  • How Much Does Pool Leak Detection Cost?
  • How Much Does Pool Acid Washing Cost?
  • How Much Does It Cost To Replace a Vinyl Pool Liner?
  • How Much Do Pool Repairs Cost?
  • How Many Hours a Day Should a Pool Pump Run?
  • How Long Do Pool Vinyl Liners Last?
  • How Long Do Pool Skimmers Last?
  • How is Commercial Pool Service Different Than Residential Service?
  • How do you winterize your pool?
  • How Do You Maintain An Indoor Pool?
  • How Do You Maintain a Gunite Pool?
  • How do you install a pool cover?
  • How Do I Make My Pool Water Crystal Clear?
  • How Do I Get Rid Of Pool Algae Fast?
  • How do I find a leak in my swimming pool?
  • How Do I Empty My Skimmer Basket?
  • How Do I Backwash My Pool Filter?
  • How Difficult Is It To Maintain a Pool?
  • Do You Vacuum A Pool On Backwash Or Waste?
  • Do I Need To Acid Wash A Pool?
  • Can You Vacuum Algae from a Pool?
  • Can You Resurface a Pool Yourself?
  • Can You Pressure Wash a Vinyl Pool?
  • Can You Acid Wash a Pool Without Draining?
  • Can I Power Wash My Gunite Pool?
  • Are Pools High Maintenance?

Pool Features

  • What Is The Longest Lasting Pool Finish?
  • What Is the Brightest LED Pool Light?
  • What Is the Best Pool Interior Finish?
  • What Is Better Pebble Tec Or Pebble Sheen?
  • What is a Vanishing Edge Pool?
  • What is a Tanning Ledge?
  • What Is A Sun Deck?
  • What is a Splash Pad?
  • What Is A Sheer Descent?
  • What is a Pebble Tec pool?
  • What Is A Grotto?
  • What Is A Cabo Shelf Or Cabo Ledge?
  • What Is A Beach Entry Pool?
  • What Does Pool Finish Mean?
  • What Does Pebble Tec Look Like?
  • What does an in floor cleaning system do?
  • What Are The Different Types Of Pool Finishes?
  • What Are The Best LED Pool Lights?
  • What Are The Benefits Of A Salt Water Pool?
  • What Are Some Diving Board Alternatives?
  • How Much Is A Pool Slide?
  • How Much Does It Cost To Replace a Pool Light?
  • How Much Does It Cost To Install An In Floor Cleaning System?
  • How Much Does It Cost To Install An Automatic Pool Cover?
  • How Much Does a Swim Up Bar Cost?
  • How Much Does A Lazy River Cost?
  • How Long Does A Pebble Tec Finish Last?
  • How Long Do LED Pool Lights Last?
  • How Does a Salt Water Pool Work?
  • How Does a Pool Waterfall Work?
  • How Do UV Pool Systems Work?
  • How Do Fire Bowls Work In A Pool?
  • How Deep Does A Pool Have To Be To Have A Diving Board?
  • Can You Walk On An Automatic Pool Cover?
  • Can You Install a Pool Light in an Existing Pool?
  • Can You Add Water Features to an Existing Pool?
  • Are Splash Pads and Spray Parks Safe?
  • Are LED Pool Lights Worth It?
  • Are beach entry pools more expensive?

Pool Equipment

  • Will A Sand Filter Remove Dead Algae?
  • Who Makes The Best Pool Equipment?
  • Which Is Better Pentair Or Hayward?
  • Where Should I Put My Pool Equipment?
  • What Size Pool Pump Do I Need For A 15,000 Gallon Pool?
  • What Pool Equipment Do You Need For a Pool?
  • What Is The Quietest Pool Pump?
  • What is the Most Efficient Way to Heat a Swimming Pool?
  • What Is The Best Pool Timer?
  • What Is The Best Pool Sweep?
  • What Is The Best Brand Pool Skimmer?
  • What Is The Best Automatic Pool Cover?
  • What is the Best Automatic Pool Cleaner?
  • What is the Best Automatic Chlorinator?
  • What is An Automatic Pool Chlorinator?
  • Tips For Protecting Your Pool From Freezing
  • Is Pentair Pool Equipment Good?
  • Is Jandy Pool Equipment Good?
  • Is It Better To Run A Pool Pump At Night Or Day?
  • Is Hayward Pool Equipment Good?
  • Is A Salt Water Pool Better?
  • How Much Space Do You Need For Pool Equipment?
  • How Much Does It Cost To Install a Pool Pump?
  • How Much Does It Cost To Install A Pool Pump Timer?
  • How Much Does It Cost To Install a Pool Heater?
  • How Much Does An Automatic Pool Cover Cost?
  • How Much Does A Pool Sweep Cost?
  • How Long Do Robotic Pool Cleaners Last?
  • How long do pool pumps normally last?
  • How Do You Set A Timer On A Pool Filter?
  • How do you properly Bond and Ground pool equipment?
  • How do you know if your pool filter is bad?
  • How Do I Install A Pool Pump?
  • How Do I Install A Pool Liner?
  • How Do I Install A Pool Heater?
  • How Do I Install A Pool Cover?
  • How Do I Install A Chlorinator?
  • How do I clean my pool without a pool pump?
  • How Do Automatic Pool Cleaners Work?
  • Does A Pool Pump Need To Be On A Dedicated Circuit?
  • Do Pool Pumps Use A Lot Of Electricity?
  • Can You Enclose Pool Equipment?
  • Can I Put My Pool Pump A Timer?
  • Are Automatic Pool Cleaners Worth It?

Pool Construction

  • What Type Of PVC Is Used For Pool Plumbing?
  • What Size Is Pool Plumbing?
  • What Is The Best Deck Material To Use Around A Pool?
  • What Is A Raised Bond Beam?
  • What Is A Mechanics Lien And Why Did I Receive One From My Pool Contractor?
  • What Happens If You Build a Pool Without a Permit?
  • What Equipment Do You Use to Dig a Pool?
  • What Does a Pool Electrician Do?
  • What Does a Pool Contractor Do?
  • What Do You Need to Build an Inground Pool?
  • What Do I Need to Know About Pool Construction?
  • Pavers vs Concrete, Which Is Best for Pools?
  • Is It Hard To Build A Swimming Pool?
  • Is Gunite Stronger Than Concrete?
  • Is A Pool Main Drain Necessary?
  • How to Level Ground For a Pool?
  • How Thick Should Swimming Pool Walls Be?
  • How Thick Should A Gunite Pool Be?
  • How Much Does It Cost To Rebar A Pool?
  • How Much Does It Cost To Pour Concrete Around A Pool?
  • How Much Does It Cost To Have A Pool Hole Dug?
  • How Much Does It Cost To Excavate a Pool?
  • How Much Does It Cost To Build Your Own Pool?
  • How Much Does It Cost To Build a Gunite Pool?
  • How Much Do Pool Contractors Charge?
  • How Many Gallons Is My Pool?
  • How Long Does Pool Excavation Take?
  • How Long Does It Take To Shoot Gunite?
  • How Long Does It Take To Rebar A Pool?
  • How Long Does It Take For A Gunite Pool To Cure?
  • How Long Does A Pool Remodel Take?
  • How is Pool Occupancy Calculated?
  • How Is A Pool Plumbed?
  • How Do You Replaster a Pool?
  • How Do You Replace A Fiber Optic Pool Light with an LED?
  • How Do You Repair A Gunite Pool Crack?
  • How Do You Put Pool Rebar?
  • How Do You Make A Pool Step By Step?
  • How Do You Install A Pool Ladder?
  • How Do You Fix Exposed Rebar In A Pool?
  • How Do You Excavate An Inground Pool?
  • How Do You Build Pool Steps?
  • How Do You Build An Indoor Pool?
  • How Do You Build A Pool?
  • How Do You Build A Gunite Pool?
  • How Do I Replace My Pool Plumbing?
  • How Do I Install a Fiberglass Pool?
  • How Close To The Property Line Can You Build A Pool?
  • Do You Need A Permit To Remodel A Pool?
  • Converting a Gunite Pool to Vinyl Liner
  • Can You Shoot Gunite In The Rain?
  • Can a General Contractor build a Swimming Pool?

Inground Pool

  • Will Fiberglass Pools Crack?
  • Why are Gunite Pools So Expensive?
  • What Type Of Tile Is Best For Inground Swimming Pools?
  • What Type of Inground Pool Lasts the Longest?
  • What Size Breaker Do I Need For An Inground Pool?
  • What Is The Healthiest Pool System?
  • What Is The Difference Between A Gunite Pool And A Shotcrete Pool?
  • What Is The Cost To Resurface A Pool?
  • What is the Cheapest Way to Install an Inground Pool?
  • What is the Cheapest Inground Pool?
  • What is the Cheapest Inground Pool Shape?
  • What Is The Best Pool Tile?
  • What Is The Best Brand Fiberglass Pool?
  • What is the Average Cost of a Fiberglass Pool?
  • What Is Coping?
  • What Does It Cost To Fill A Pool?
  • What Are The Disadvantages Of A Fiberglass Pool?
  • Is Pool Coping Necessary?
  • Is Having An Inground Pool Worth It?
  • Is A Gunite Pool Better Than Vinyl?
  • How Much Is an Indoor Pool?
  • How Much Is a Negative Edge Pool?
  • How Much Is a Concrete Inground Pool?
  • How Much Does Pool Tile Installation Cost?
  • How Much Does It Cost To Run Pool Electrical?
  • How Much Does It Cost To Repair A Gunite Pool?
  • How Much Does It Cost To Build an Inground Pool?
  • How Much Does a Vinyl Liner Pool Cost?
  • How Much Does A Pool Remodel Cost?
  • How Much Does A Fiberglass Inground Pool Cost?
  • How Much Does A 18×36 Inground Pool Cost?
  • How Much Does A 12×24 Inground Pool Cost?
  • How Long Does Pool Plumbing Last?
  • How do I stop my pool from getting groundwater?
  • How Do I Fix An Inground Pool Crack?
  • How Do I Choose A Pool Tile?
  • How Do I Build My Own Inground Pool?
  • How Deep Are Most Inground Pools?
  • Fill A Pool: How Much Does It Cost To Fill A 20,000 Gallon Pool?
  • Do Concrete Pools Crack?
  • Can You Tile Over Existing Pool Tiles?
  • Can You Put Lights in a Fiberglass Pool?
  • Can You Paint Pool Bottom?
  • Can You Include A Pool In Your Construction Loan?
  • Can You Expand an Existing Pool?
  • Can I Make My Swimming Pool Bigger?
  • Can I Build My Own Inground Swimming Pool?
  • Can Gunite Pools Leak?
  • Can Gunite Pools Be Salt Water?
  • Are Gunite Pools Rough?
  • Are Cracks In Pool Plaster Normal?

Hot Tubs / Spas / Saunas

  • Which Type of Hot Tub Should I Buy?
  • Which is Better a Sauna or a Hot Tub?
  • How Does a Hot Tub work?
  • How Do You Get Rid Of Hot Tub Scale Build?
  • Hot Tub Buyers Guide
  • Cleaning a Hot Tub Filter
  • Adding a Sauna To Your Backyard

Above Ground Pool

  • What Is The Best Above Ground Pool?
  • How Much Does It Cost To Install An Above Ground Pool?
  • How Long Do Above Ground Pools Last?
  • How Deep Can You Get An Above Ground Pool?
  • Can You Partially Bury An Above Ground Pool?
  • Home
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  • Hot Tubs / Spas / Saunas
  • How Does a Hot Tub work?

How Does a Hot Tub work?

Table of Contents
  • How Hot Tubs Work
    • The Control System (Spa Pack)
    • Control from the top or from the side of the spa
    • Wiring a Hot Tub
      • 120V vs 240V
    • Hot Tub Plumbing
      • Suction Line
      • Return Line
      • Manifold
      • PVC Pipes
  • Hot Tub Components
    • Pump
    • Filter
    • Heater
  • Hot Tub Options
    • Inground Hot Tubs
    • Hot Tubs With Ozonators
    • Hydrojets vs. Jets
      • Conclusion on How How Tubs Work
4.7/5 - (179 votes)

Many consumers are considering buying a hot tub but have questions – particularly “how does a hot tub work“. From start to end, this article will walk you through a complete hot tub functions, including all parts and piping.

How Hot Tubs Work #

The Control System (Spa Pack) #

The control system (also known as the spa pack) is your hot tub’s brain.

Everything the hot tub does is controlled by it, from turning on the jets to determining how much heat is poured into the water to turning on any lights and music.

The Hot Tub - Spa Pack controls all of the operational components of the hot tub

This system will wear out over time or with heavy use. On average, it can give you 7-8 years of life, but it’s not unheard of to get 10 years out of it.

However, this does not necessitate the replacement of your hot tub. You’ll only need to purchase a new control system to keep the hot tub operational.

Control from the top or from the side of the spa #

There are two types of hot tub control systems: topside and spa-side.

Topside control systems are seen on standalone hot tub shells. This is the most common tub, and the control panel is positioned on the tub’s top edge. While you’re in the tub, you’ll have access to controls at your fingertips, making it easy to make modifications to the atmosphere.

The spa-side control systems, which include the pump, filter, and heater, are placed away from the tub. These systems are typically found in custom hot tubs that are built from the ground up and integrated into a landscaped backyard with an existing pool. Many spa-side systems come with a remote control that may be used to control the tub’s many functions.

While wireless remotes are available, hardwiring is the most frequent method. Running a wire from the system to a position on the spa’s deck where the remote can be easily accessed while in the tub is required.

Because most high-end designs are surrounded by concrete, this line should be added when the tub is built.

Operational Components (Plumbing)
A hot tub’s plumbing is a closed-loop system that cycles your water indefinitely for as long as it’s operating.

This entire process prevents stagnation, distributes chemicals, allows the filter and heater to do their jobs, and ensures that the jets have a constant stream of water.

Wiring a Hot Tub #

A hot tub or backyard spa is a great way to relax and have fun, but the installation must adhere to specific electrical codes. For most full-sized spas or hot tubs, the National Electrical Code (NEC) requires:

  • Hard-wiring the spa into a ground fault circuit interrupter (GFCI)-protected 220 to 240V, 50- or 60-amp dedicated circuit.
  • Installing a manual disconnect device, often called a spa panel, between your home’s electrical breaker panel and the spa.
Wiring a hot tub or spa? There are 2 options 120V and 240V.
Wiring a hot tub or spa? There are 2 options 120V and 240V. – Photo Credit – SpaDepot.com

120V vs 240V #

Spas and hot tubs that run on 120V are known as “plug-and-play”.
A dedicated standard outlet is required – no other appliances, lights, or other electrical devices should be connected to this circuit at any time. A 20 AMP BREAKER is required for this circuit.These types of hot tubs and spas include a GFCI-protected plug that should be plugged into a standard dedicated outlet, as described above. The outlet should be within 5-10 feet of the hot tub.

240V Hot Tubs & Spas will require a 40, 50 or 60 amp 2-Pole GFCI protected breaker. The amperage depends on the model of the hot tub or spa. The GFCI breaker can by positioned either in your house at the main panel or in a separate breaker box. Circuits for 240V units must be dedicated as well. All wires entering the spa have to be in a flexible waterproof conduit.

Hot Tub Plumbing #

The pump, return lines, manifolds, PVC tubes, and jets or hydrojets are all part of the return side, which pushes the clean, heated water back out to your hot tub.

Spa / Hot Tub Plumbing Layout Diagram
Spa / Hot Tub Plumbing Layout Diagram – Photo Credit: Spa Guys

Suction Line #

The suction side includes the pump (on low speed for sucking), skimmers, and suction lines, which sucks the water out of the tub and into the filtration system.
The filtration system, which includes the pump (to keep things moving), filter, heater, and sometimes an ozonator, filters and eventually heats the water being pulled in.

Return Line #

The return line of a hot tub is a PVC pipe that transports water from the heater (or ozonator) to the tub via the manifolds.

It’s similar to a suction line, but reversed.

Manifold #

The manifolds are located at the end of the return line. These are utilized to divert the returning water to each of the return jets by splitting it up.

Manifolds are available in a number of sizes to fit tubs with a few or many jets.

PVC Pipes #

Flexible pipes are attached to the manifolds. The filtered water is delivered to the tub by these pipes, which run from the manifold to the jets.

They’re composed of flexible PVC so they can easily wrap around the tub’s peaks and dips. This also helps to save space and creates cleaner lines.

Inside the guts of a hot tub, the components are pretty standard from model to model
Inside the guts of a hot tub, the components are pretty standard from model to model

Let’s take a closer look at the plumbing system by tracking the flow of water from the hot tub (the suction side).

How Does a Hot Tub Work? - Hot Tub Parts - Internal Components
How Does a Hot Tub Work? – Hot Tub Parts – Internal Components

Hot Tub Components #

Pump #

The pump in your spa can be thought of as the beating heart of your filtration system.

It is in charge of drawing water into the tub, passing it through the filtration system, and returning it to the tub. Everything else fails without a properly functioning pump, just like a human heart.

The suction created by one side of the pump is what pulls water in from the hot tub. The other side of the pump creates pressure by moving in the opposite direction.

It can be compared to a pendulum. By default, if one side is sucking in the water, the other side will be pushing it along.

Filter #

The water is pumped through the pipes after the pump and put through a specific hot tub filter.

A cartridge filter is the most popular type of filter for hot tubs. This is a pleated, cylindrical filter composed of polyester or paper. Pollutants destroyed by chlorine or bromine adhere to the filter and are removed from the water as it goes through it.

This method can also be done with a sand filter or a DE (diatomaceous earth) filter, however these are less frequent. Sand filters employ spiky silica sand to trap impurities, whereas DE filters filter water using grids and DE powder.

Note that some tubs incorporate the cartridge filter into the skimmer, which is where the filtration process starts. This is done to assist in the removal of huge debris so that it does not enter the spa system and cause harm to any equipment.

Heater #

There are numerous systems for heating the hot tub.

Electric, gas, and solar heaters are available in a variety of styles.

Electric heaters contain elements that run the length of a stainless steel pipe inside the unit. As the water flows through, the temperature of the water rises.

Hot Tub Options #

Inground Hot Tubs #

Inground hot tubs often use gas heaters, which require a gas line. Running this line might be very expensive, but on the plus side, these heaters are highly fast and effective at heating the water.

Solar heaters can also be used with your hot tub for a more environmentally friendly option. These use solar energy to heat the pipes that carry the water. While this heater is a possibility, its dependency on sunlight makes it less than ideal for nighttime tub use.

Of course, hot tubs are designed to be hot, but a temperature that is too high might cause injury. As a result, they have a failsafe built in to prevent scalding.

The optimal temperature for keeping the tub is between 100°F and 102°F, according to the US Consumer Product Safety Commission. At 104°F, most tubs will shut off.

Hot Tubs With Ozonators #

Ozonators are being installed by certain spa owners to help keep the water clean. If you elect to utilize one, it will be situated in the equipment chain after the heater.

Ozonators produce ozone gas, which is then injected into the water. This method uses ozone to eliminate impurities from the tub while lowering the amount of sanitizing chemicals required.

You can choose between two types of ozonators: ultraviolet light (UV) and corona discharge (CD). Because of its extended longevity, great efficiency, and lower size, CD is the most extensively used ozonator.

Hydrojets vs. Jets #

The jets are any hot tub’s calling card. The water from the filtering system returns to the tub through these entrance ports.

The water pressure of the jets may be changed, and the water can be shot in slow or fast motion.

As a result, they can also be used as massagers, providing an extra layer of relaxation for your muscles.

Water in, air in, and an air mixture outflow are the three components of hot tub jets.

How Hot Tubs Work - Complete Diagram of All Internal Components
How Hot Tubs Work – Complete Diagram of All Internal Components

Conclusion on How How Tubs Work #

A pressured stream of water is pumped through the filtration system’s pipes, out the jet, and into the tub by the hot tub’s pump. A venturi, which is a small hole in the jet that water is directed through, also mixes air into the stream. This is known as the “Venturi effect.”

This happens because when water fills up the pipe, its speed increases while its pressure lowers. This reduces the amount of water coming in and forces it through the little hole.

Because the air outside the jet has a higher pressure than the water inside the pipe, it is driven into the stream and mixed with it. This creates a pressured mixture of air and water, which is then ejected out the jets, resulting in the bubbles.

Air blowers are occasionally used in hot tubs to create bubbles. They’re typically installed on tubs with a large return line. Because the pump is so far away from the tub, the longer this line is, the fewer bubbles you’ll get. In most circumstances, a blower will be overkill if the equipment is somewhat close to the spa itself.

That’s all there is to it. You now understand how a hot tub works.

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Updated on July 12, 2022
How Do You Get Rid Of Hot Tub Scale Build?Which is Better a Sauna or a Hot Tub?

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Table of Contents
  • How Hot Tubs Work
    • The Control System (Spa Pack)
    • Control from the top or from the side of the spa
    • Wiring a Hot Tub
      • 120V vs 240V
    • Hot Tub Plumbing
      • Suction Line
      • Return Line
      • Manifold
      • PVC Pipes
  • Hot Tub Components
    • Pump
    • Filter
    • Heater
  • Hot Tub Options
    • Inground Hot Tubs
    • Hot Tubs With Ozonators
    • Hydrojets vs. Jets
      • Conclusion on How How Tubs Work

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