How Often Should You Put Chlorine In A Hot Tub?

26 minutes read

Chlorine is an essential chemical for maintaining water cleanliness and hygiene in a hot tub. It helps kill bacteria, viruses, and other contaminants that may be present in the water. However, the frequency of chlorine additions to a hot tub depends on various factors such as usage, number of users, weather conditions, and water quality.


In general, it is recommended to test the water regularly, at least 2-3 times per week, to monitor the chlorine levels. Typically, the ideal chlorine range for hot tubs is between 3-5 parts per million (ppm). If the chlorine level falls below this range, it indicates that the water is not adequately sanitized, and you should add more chlorine.


The frequency of adding chlorine also depends on the type of chlorine you're using. Traditional granular chlorine or chlorine tablets are usually added every 1-2 weeks. However, it's important to note that chlorine levels can fluctuate due to factors such as hot tub usage, contaminants brought in by bathers, or heavy rainfall. In such cases, additional chlorine may need to be added to maintain the desired levels.


Furthermore, shocking the hot tub with a higher dose of chlorine is recommended on a periodic basis, such as every 1-2 weeks or as per the manufacturer's guidelines. This process, known as "shocking," helps break down organic matter, combats algae, and rejuvenates the effectiveness of the chlorine in the water.


Ultimately, how often you should add chlorine to your hot tub depends on ongoing testing and maintaining the proper chlorine levels for water sanitation and safety. It is vital to follow the manufacturer's recommendations and guidelines for the specific hot tub model and the chlorine product being used to ensure proper maintenance.

Best Hot Tubs of 2024

1
MSPA, Oslo, Frame Series, Fixed Body, Movable, Hot Tub & Spa, Wi-Fi, App Controlled, Jets & Bubble System – 6 Person

Rating is 5 out of 5

MSPA, Oslo, Frame Series, Fixed Body, Movable, Hot Tub & Spa, Wi-Fi, App Controlled, Jets & Bubble System – 6 Person

  • EASY ASSEMBLY: Plug & play system & simple 4 easy screws on 4 corners, no tools required and rest is all plug in modules. Hard Body frame with Rhino Tech 6 layer reinforced PVC inner liner
  • WI-FI ENABLED & APP CONTROLLED: Say goodbye to the days of reaching over your spa or worse having to get out of your relaxing soak just to change some settings. Have full control of your MSpa at all times right at your fingertips. Enjoy the easiest operation and usability through our intuitive UI. Easily receive tips, notices, and alarm messages on the go so you’re always in the loop.
  • OLED TOUCH SCREEN: All your spa controls in one convenient unit! Easily control your spa from your easy to use control center. Our newest all-in-one control box now features a protective cover to shield from harsh outdoor elements such as direct sunlight and extreme weather conditions.
  • HYDROMASSAGE JETS PLUS: Going beyond just comfort, hydromassage provides amazing health benefits for your mental and physical health. Enjoy an immersive at home experience that has been shown to relieve muscle soreness and tension, soothe minor aches and pains, and reduce stress and anxiety.
  • LED LIGHT - LIGHT UP THE NIGHT: Take your spa experience to the next level with beautiful lighting. Our light up spas feature an LED light strip at the bottom to make your spa GLOW. Translucent fabric elements allow beautiful patterns to shine through for a truly romantic environment for your evening soaks. Switch colors based on your mood and enjoy late into the night.
  • REVOLUTIONARY FIXED BODY: HOT TUB & SPA option for houses, apartments, buildings, or tight spaces that does not have access to move a normal Fixed Frame Hot Tub over the roof.
  • SMART FILTRATION: To ensure the best quality of water in the spa, the filter cartridge is suggested to be cleaned after each use and replaced every 3-5 days. Feel hard to follow the tips each time? Don’t worry there will be a reminder popping up at least once a week when spa keeps working.
  • ALL-AROUND BUBBLING DESIGN: 360° air jet system fills the spa with thousands of bubbles, staggered jets push bubbles into the center of the spa creating a balanced, all-encompassing body massage.
  • ANTI-ICING SYSTEM: When the water temperature is lower than 1°C (33.8°F), the heater runs automatically until the water is heated up to 3°C (37.4°F). This will help prevent water from freezing. The circulation system, pump, and pipe will be saved.
2
Life Smart LS100 Taupe 4 Person Plug and Play Thermal Friction Heating Square Hot Tub Spa with 13 Jets, Black Cover, & Multi Color LED Lighting System

Rating is 4.9 out of 5

Life Smart LS100 Taupe 4 Person Plug and Play Thermal Friction Heating Square Hot Tub Spa with 13 Jets, Black Cover, & Multi Color LED Lighting System

  • Provides relaxation at the touch of a button for up to 4 people with the convenient digital command center with a quick assembly; Includes lightweight polyester cover that resists abrasions and is less prone to fading from the sun
  • Pampering yourself is easy with the 13 hydrotherapy high-powered jets with an underwater, multi-color LED light system, giving you the ultimate spa experience
  • Energy efficient and exceeds California Energy Commission mandates for hot tub energy consumption, so there is no need to turn the temperature down while not in use
  • Innovative thermal friction heating system eliminates the need for a separate heater with full-foam insulation, and the included thermal locking cover will keep the heat in
  • Water capacity of 205 gallons with an exterior of 70 inches long, 61 inches wide, and 32 inches tall, while the interior measures 57 inches wide and 28 inches tall
3
ALEKO 4-Person Inflatable Hot Tub |Square 160 Gallon | Tub with Fitted Cover | 100-130 Bubble-Jets | Hot Tub Spa with 3 Filters| 5ft by 5ft | Outdoor Hot Tub | (Brown HTISQ4BR)

Rating is 4.8 out of 5

ALEKO 4-Person Inflatable Hot Tub |Square 160 Gallon | Tub with Fitted Cover | 100-130 Bubble-Jets | Hot Tub Spa with 3 Filters| 5ft by 5ft | Outdoor Hot Tub | (Brown HTISQ4BR)

  • 4 PERSON HOT TUB 1200W HEATER - ALEKO Inflatable Hot Tub with hot tub accessories heats up to 104°F at 5°/hr. Easy 5 minute set up with automatic inflation hose. Portable hot tub is cleaner and hotter with included tub cover (polyurethane).
  • AUTOMATIC INFLATION, EASY SETUP - ALEKO 4 Person Inflatable Hot Tub features push-button automatic inflation, easily portable. Inflatable tub heats quickly with powerful hot tub heater and tub cover. ALEKO Outdoor Hot Tubs remain clean with inflatable pool filter (x3).
  • ALL MATERIALS INCLUDED: ALEKO 160 Gallon Tub (5' x 5' x 2' feet), fitted polyurethane cover to maintain heat, inflation hose, 3 filters, 1 filter cover, ground cloth, rubber plug, repair kit, 1200W Heater, 1800W (110-120V) power pack, 600W bubbler, 120 Volt AC filter pump. Connect directly to outlet for best results.
  • DIGITAL PANEL, BUBBLER JETS - ALEKO Portable Hot Tub features massaging jet bubbles, temperature control, and inflation on easy to use digital panel. Upgrade to ALEKO home spa and tub for convenient use all year long, for travel and vacations, customer support and premium quality.
  • ELEGANCE AND QUALITY - ALEKO 4 Person Inflatable Hot Tub provides long lasting service for your family. We stand behind the Amazon 30-day money-back guarantee. Customer service available to assist with shipment, delivery, measurement, install, and tech support needs.
  • ALEKO does not ship Inflatable Hot Tubs to residents of California, due to state requirements for energy efficiency.
4
Intex 28481E Simple Spa 77 Inch x 26 Inch 4 Person Outdoor Portable Inflatable Round Heated Hot Tub with 100 Bubble Jets, Carry Bag, and Cover, Gray

Rating is 4.7 out of 5

Intex 28481E Simple Spa 77 Inch x 26 Inch 4 Person Outdoor Portable Inflatable Round Heated Hot Tub with 100 Bubble Jets, Carry Bag, and Cover, Gray

  • Pamper and treat yourself with the 100 soothing high-powered jets that give you the ultimate spa experience in relaxing water up to 104 degrees Fahrenheit
  • Round 77 by 26-inch above-ground blow-up tub provides relaxation at the touch of a button for up to 4 people with the easy-to-use tilt-adjustable control panel
  • Spa for adults has a built-in hard water treatment system ensures a gentle feeling on skin, clothes, and the entire spa system; Water capacity: 210 gallons
  • Includes insulated cover, heater/blower system, 2 filter cartridges, thermal ground cloth, inflation hose, carry bag, floating chlorine dispenser, and test strip
  • Disclaimer: This item requires 28523E energy efficient cover for purchases shipped to California, if not, the order is subject to be canceled due to shipping restrictions
5
Bestway Miami SaluSpa 2 to 4 Person Inflatable Round Outdoor Hot Tub Spa with 140 Soothing AirJets, Filter Cartridges, Pump, & Insulated Cover, Black

Rating is 4.6 out of 5

Bestway Miami SaluSpa 2 to 4 Person Inflatable Round Outdoor Hot Tub Spa with 140 Soothing AirJets, Filter Cartridges, Pump, & Insulated Cover, Black

  • Round 2 to 4-person spa has you relaxed in no time with a soothing massage system, rapid heating, and integrated water filtration
  • Built-in AirJet system with 140 jets releases warm air into the water, while the digital control panel adjusts the temperature up to 104 degrees Fahrenheit
  • Features a FreezeShield automatic heating function to prevent inner components from freezing during colder temperatures to ensure long-lasting use
  • Includes a pump, an insulated cover, cupholders, ChemConnect dispenser to main clean water, filter cartridges, and repair patch
  • Constructed of durable DuraPlus materials with cushioned, comforting floors and a convenient drain valve for ultimate stability; Dimensions (L x W x H): 71 x 71 x 26 inches
6
RELXTIME 73in x 73in 4-6 Person Inflatable Hot Tub Spa, AirJet Outdoor Portable Hottub with 130 Bubble Jets, Filter Cartridges, Insulated Cover, Grey

Rating is 4.5 out of 5

RELXTIME 73in x 73in 4-6 Person Inflatable Hot Tub Spa, AirJet Outdoor Portable Hottub with 130 Bubble Jets, Filter Cartridges, Insulated Cover, Grey

  • RELAXING INFLATABLE SPA: Square 4 to 6-person spa has you relaxed in no time with a soothing massage system, rapid heating, and integrated water filtration. Using a touch digital control panel, easy to inflate & deflate
  • DURABLE & INNOVATIVE CONSTRUCTION: The spa's durable PVC material and beam construction offer superior strength and stability while ensuring your inflatable spa never loses its shape
  • ENERGY EFFICIENT SPA COVER: Inflatable cover provides extra insulation and minimizes heat loss; this cover will help protect your Hot Tub from rainwater pooling
  • FREEZE PROTECTION: Freeze protection automatic heating function prevents inner components from freezing, you can use your inflatable spa in colder temperatures
  • ACCESSORIES: 1 pool cover, 1 inflatable caover, 4 seat cushions, 2 filter cartridges & 2 covers, 20 strips water testing, 2 PVC patches, 1 spanner, 1 inflation hose, 1 air valve cap, 1x way valve, 1 x barometer, 1 drainage bung, 2 child safety key, 1 power cable, 1 storage bag, 1 instruction manual.
7
Intex SimpleSpa Bubble Massage 4 Person Inflatable Round Hot Tub Relaxing Outdoor Water Spa with Soothing Jets, Insulated Cover, and Storage Bag, Gray

Rating is 4.4 out of 5

Intex SimpleSpa Bubble Massage 4 Person Inflatable Round Hot Tub Relaxing Outdoor Water Spa with Soothing Jets, Insulated Cover, and Storage Bag, Gray

  • Inflatable hot tub offers relaxation in comfort with 100 soothing high-powered jets for a refreshing massage and an ultimate spa experience
  • Features an all-in-1 control unit to adjust the heating system to suit personal preferences of water temperatures
  • Accommodates up to 4 people with a convenient cup holder, a floating chemical dispenser, and 2 easy-to-replace filter cartridges for cleaner water
  • Sturdy horizontal beam construction for stability that withstands outdoor elements for long-lasting use with a water capacity of 210 gallons
  • Includes an insulated cover to minimize heat loss, a thermal ground cloth, and a carry bag for easy storage; Dimensions (L x W x H): 77 x 77 x 26 inches
8
Bestway Helsinki SaluSpa 7 Person Inflatable Outdoor Hot Tub Spa with 180 Soothing AirJets, Filter Cartridges, Pump, and Insulated Cover, Brown Wood

Rating is 4.3 out of 5

Bestway Helsinki SaluSpa 7 Person Inflatable Outdoor Hot Tub Spa with 180 Soothing AirJets, Filter Cartridges, Pump, and Insulated Cover, Brown Wood

  • ATTENTION: Shipping restrictions may apply. This model is not available for sale in the following states: CA, MA, ME, NJ, NV, NY, OR, RI. Residents of these states may select the comparable Bestway model sold with energy-efficient EnergySense thermal cover to avoid cancellation.
  • Round 5 to 7-person spa has you relaxed in no time with a soothing massage system, rapid heating, and integrated water filtration
  • Built-in AirJet system with 180 jets releases warm air into the water, while the digital control panel adjusts the temperature up to 104 degrees Fahrenheit
  • Features a FreezeShield automatic heating function to prevent inner components from freezing during colder temperatures to ensure long-lasting use
  • Constructed of durable drop stitch material that provides rigidity while still being lightweight for easy portability when deflated
  • Includes a pump, an insulated cover, cupholders, a ChemConnect dispenser to main clean water, a filter cartridge, and a repair patch
9
Jleisure Avenli Aegean 1,200 Liter 65 inch 6 Person Portable Rigid Foam Wall Hot Tub Spa with Insulated Cover and Floor Protector, Black

Rating is 4.2 out of 5

Jleisure Avenli Aegean 1,200 Liter 65 inch 6 Person Portable Rigid Foam Wall Hot Tub Spa with Insulated Cover and Floor Protector, Black

  • Rigid Foam Spa measures 65 inches long, 65 inches wide, and 27 inches tall, the ideal size for up to 6 adults
  • Insulated foam walls act as an insulator and retain the heat whilst the Tri-Tech PVC material provides a durable shell for durability and longevity
  • Features 90 bubble jet holes and a 104-degree Fahrenheit rapid heating system for longer and more comfortable spa relaxation anytime
  • Digitally controlled pump for a user-friendly operation; Note, filter and filter cartridge are located in the back pocket of the pump
  • Includes insulated top cover with double-locking safety clips, floor protector, pump unit, 2 filter cartridges, flexible inflation hose, and repair patch
10
INTEX 28441EP PureSpa Greywood Deluxe Spa Set: Includes Energy Efficient Spa Cover – Spa Control App – Wireless Control Panel – 6 Person Capacity – 85" x 28"

Rating is 4.1 out of 5

INTEX 28441EP PureSpa Greywood Deluxe Spa Set: Includes Energy Efficient Spa Cover – Spa Control App – Wireless Control Panel – 6 Person Capacity – 85" x 28"

  • ✔ FIBER-TECH BEAM CONSTRUCTION – Innovative Fiber-Tech Technology offers superior structural stability while maintaining a comfortable surface for a luxorious and refreshing spa experience
  • ✔ THE ULTIMATE SPA EXPERIENCE – Control all Spa functions from your phone or tablet; program Spa use and maintenance remotely with WIFI connectivity; available on App Store and Google Play App
  • ✔ REMOVABLE WIRELESS CONTROL PANEL – The Greystone Deluxe PureSpa includes a removable wireless control panel that features integrated wireless charging; 48 hours of operation on a single charge and conveniently attaches to top of the tub
  • ✔ ENERGY EFFICIENT SPA COVER – High density thermal-resistant foam provides extra insulation and minimizes heat loss; this cover enhances the Spa performance while improving the energy efficiency by as much as 50%
  • ✔ PREMIUM ACCESSORIES – Everything you need for pure relaxation! Let your worries bubble away with 2 contoured headrests and a mood-setting multi-colored LED light (requires 3 AAA batteries, not included)
  • ✔  CUSTOMER SATISFACTION – Our dedicated customer service team is available via phone, chat, or email to help with any questions you may have on use, installation, or service needs; INTEX's 1-Year Manufacturer Limited Warranty gives you peace of mind
11
INTEX 28429EP PureSpa Plus Bubble Massage Spa Set: Includes Energy Efficient Spa Cover – 2 Contoured Headrest – LED Light – 4 Person Capacity – 77" x 28"

Rating is 4 out of 5

INTEX 28429EP PureSpa Plus Bubble Massage Spa Set: Includes Energy Efficient Spa Cover – 2 Contoured Headrest – LED Light – 4 Person Capacity – 77" x 28"

  • ✔ FIBER-TECH BEAM CONSTRUCTION – Innovative Fiber-Tech Technology offers superior structural stability while maintaining a comfortable surface for a luxorious and refreshing spa experience
  • ✔ HARD WATER TREATMENT SYSTEM – Built-in Hard Water Treatment System makes water gentler on skin, clothes and the entire spa system; hard water buildup limits water flow and reduces the life of your spa
  • ✔ HEATED AIR BUBBLE TECHNOLOGY – The Positive Temperature Coefficient (PTC) heater is designed to maximize heat transfer to the water, while ensuring the highest level of safety, performance, and longevity
  • ✔ ENERGY EFFICIENT SPA COVER – High density thermal-resistant foam provides extra insulation and minimizes heat loss; this cover enhances the Spa performance while improving the energy efficiency by as much as 50%
  • ✔ PREMIUM ACCESSORIES – Everything you need for pure relaxation! Let your worries bubble away with 2 contoured headrests and a mood-setting multi-colored LED light (requires 3 AAA batteries, not included)
  • ✔  CUSTOMER SATISFACTION – Our dedicated customer service team is available via phone, chat, or email to help with any questions you may have on use, installation, or service needs; INTEX's 1-Year Manufacturer Limited Warranty gives you peace of mind


What is the maximum allowable chlorine level in a hot tub?

The maximum allowable chlorine level in a hot tub typically ranges from 3-5 parts per million (ppm) according to industry standards. It is important to regularly test the chlorine level in a hot tub and adjust it as needed to maintain a safe and effective disinfection level.


What is the ideal chlorine level for hot tub sanitization?

The ideal chlorine level for hot tub sanitization should typically range between 3-5 parts per million (ppm). However, it is important to check with the manufacturer's guidelines or consult a professional as specific hot tub models may have their own recommended chlorine levels.


How to adjust pH levels in a hot tub when using chlorine?

To adjust pH levels in a hot tub when using chlorine, follow these steps:

  1. Test the pH level: Use a water testing kit or test strips to determine the current pH level of your hot tub water. The ideal pH range for a hot tub when using chlorine is between 7.2 and 7.8.
  2. Lowering pH levels: If the pH level is above the desired range, you need to lower it. To do this, add a pH decreaser or pH minus product according to the manufacturer's instructions. Start with a small amount, as you can always add more if necessary. Wait for some time, typically around 30 minutes, then retest the water to check if the pH has reached the desired range.
  3. Raising pH levels: In case the pH level is below the desired range, you will need to raise it. Use a pH increaser or pH plus product, following the instructions provided. Add it gradually, as it's easier to increase the pH than decrease it. After adding the product, wait for around 30 minutes, then retest the water to check whether the pH has increased to the desired level.
  4. Recheck and balance: After adjusting the pH levels, it's important to retest the water to ensure it is within the ideal range. Additionally, you may need to adjust other water balance parameters such as total alkalinity and calcium hardness, which can also impact the effectiveness of the chlorine.
  5. Regular testing and maintenance: Regularly monitor the pH levels in your hot tub and adjust as needed, typically once or twice a week. Maintaining proper pH levels is crucial for ensuring chlorine is effective in sanitizing the water and preventing the growth of bacteria or algae.


Remember to always follow the product instructions, use the appropriate safety equipment (such as gloves), and consult the hot tub manufacturer's guidelines for specific pH adjustment recommendations.


How to remove chlorine odors from hot tub accessories and towels?

To remove chlorine odors from hot tub accessories and towels, you can try the following methods:

  1. Vinegar Soak: Fill a basin or bucket with equal parts water and white vinegar. Soak the affected accessories and towels in the mixture for at least 15-30 minutes. Vinegar helps neutralize and remove chlorine odors. After soaking, rinse the items thoroughly with clean water and let them air dry.
  2. Baking Soda Paste: Make a paste by mixing baking soda with a small amount of water. Apply the paste to the affected areas of the accessories and towels, letting it sit for about 15 minutes. Baking soda is known for its odor-absorbing properties. Rinse the items with water and allow them to air dry.
  3. Lemon Juice Spray: Mix equal parts of lemon juice and water in a spray bottle. Spray the solution onto the affected areas of the accessories and towels, making sure they are thoroughly damp. Leave it on for around 10-15 minutes, then rinse with water and air dry. Lemon juice has natural deodorizing properties that can help eliminate the chlorine smell.
  4. Sunlight Exposure: Hang the accessories and towels outside in direct sunlight. The combination of fresh air and UV rays from the sun can help remove chlorine odors naturally. Leave them outside for a few hours or until the odor diminishes.
  5. Oxy-based Cleaner: If the above methods don't completely eliminate the chlorine odor, you can try using an oxygen-based cleaner or an enzymatic cleaner specifically designed for hot tubs or sports equipment. Follow the instructions on the product label for how to use it on your accessories and towels.


Remember to always check the care instructions on the accessories and towels before using any of the methods mentioned above to ensure they won't be damaged.

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