How to Balance Hot Tub Water After Filling?

20 minutes read

After filling your hot tub with water, it is important to balance the water chemistry to ensure a safe and enjoyable experience. Here are the steps to balance hot tub water after filling:

  1. Testing the water: Begin by testing the water for pH, total alkalinity, and sanitizer levels using a test kit or test strips. These readings will give you an idea of the water's current condition.
  2. Adjusting pH: If the pH level is outside the ideal range of 7.2-7.8, it needs adjustment. To increase pH, add a pH increaser (sodium carbonate). To lower pH, use a pH decreaser (sodium bisulfate or muriatic acid), following the manufacturer's instructions.
  3. Balancing total alkalinity: Total alkalinity acts as a buffer for pH, so it should be in the range of 80-120 ppm. To increase alkalinity, add an alkalinity increaser (sodium bicarbonate). If the alkalinity is high, you can use an acid, like vinegar, to decrease it. Adjustments should be made gradually, allowing the water to circulate and retest before further adjustments.
  4. Sanitizing the water: Ensure that the sanitizer level, usually chlorine or bromine, is within the recommended range (usually 3-5 ppm for chlorine). Follow the instructions on the sanitizer product to make adjustments. If using traditional chlorine, shock the water with a non-chlorine shock oxidizer to remove any contaminants.
  5. Calcium hardness: Test the calcium hardness level of the water. If it is below 150 ppm (parts per million), add a calcium hardness increaser (calcium chloride) to raise it. If the level is too high, you may need to partially drain and refill the tub with fresh water.
  6. Other adjustments: Depending on your specific hot tub and water source, additional adjustments like adjusting the total dissolved solids (TDS) level or adding a metal sequestrant might be necessary.


Remember to follow the instructions on the products you use and to retest the water after making adjustments. Regular monitoring and maintenance of the water chemistry will help keep your hot tub clean, safe, and enjoyable.

Best Hot Tubs of October 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.
2
Intex PureSpa Plus 6 Person Inflatable 94" Square Outdoor Hot Tub Spa with 170 Bubble AirJets, Insulated Cover & LED Color Changing Lights, Greystone

Rating is 4.9 out of 5

Intex PureSpa Plus 6 Person Inflatable 94" Square Outdoor Hot Tub Spa with 170 Bubble AirJets, Insulated Cover & LED Color Changing Lights, Greystone

  • ✔ 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
  • ✔ PREMIUM ACCESSORIES – Everything you need for pure relaxation! Let your worries bubble away with 2 contoured headrests, an energy efficient spa cover, and a mood-setting multi-colored LED light (requires 3 AAA batteries, not included)
  • ✔ BUILT-IN FASTFILL INFLATION SYSTEM – Designed with a convenient FastFill inflation system; just simply inflate and deflate at a touch of a button, no external hose needed
3
Coleman SaluSpa Sicily AirJet 2 to 7 Person Inflatable Hot Tub Round Portable Outdoor Spa with 180 Soothing AirJets and Insulated Cover, Gray

Rating is 4.8 out of 5

Coleman SaluSpa Sicily AirJet 2 to 7 Person Inflatable Hot Tub Round Portable Outdoor Spa with 180 Soothing AirJets and Insulated Cover, Gray

  • SaluSpa Sicily AirJet hot tub provides a soothing massage experience with 180 bubbling warm jets for up to 7 people while reaching up to 104 degrees Fahrenheit for ultimate relaxation
  • Features Freeze Shield automatic heating function to prevent inner components from freezing and 2 easy-lift, built-in handles for easy transport; Water capacity (80 percent filled): 314 gallons
  • Includes a reinforced cover that holds in heat when the spa isn't in use and helps keep dust and debris out of the water, pump, ChemConnect dispenser, filter cartridge, and repair patch
  • Shipping restrictions may apply since this model is not available for sale in the following states: CA, MA, ME, NJ, NV, NY, OR, and RI; Buy only model with energy-efficient EnergySense thermal cover
4
Life Smart 4 Person Plug and Play Thermal Friction Heating Square Hot Tub Spa with 13 Jets, Cover, and Multi Color LED Lighting System, Taupe

Rating is 4.7 out of 5

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

  • Provides relaxation at the touch of a button for up to 4 people with the convenient digital command center with a quick assembly, no need for custom wiring or installation
  • 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
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
Coleman SaluSpa AirJet 2 to 4 Person Round Inflatable Hot Tub Portable Outdoor Spa with 60 Soothing AirJets and Insulated Cover, Black

Rating is 4.5 out of 5

Coleman SaluSpa AirJet 2 to 4 Person Round Inflatable Hot Tub Portable Outdoor Spa with 60 Soothing AirJets and Insulated Cover, Black

  • Relaxing inflatable spa ensures ultimate relaxation in comforting warm water with the 2 to 4-person hot tub that has 60 soothing air jets and a water capacity of 192 gallons
  • Made of durable materials and cushioned floors that hold strong against the elements for stability and comfort allowing you to indulge in relaxation regardless of weather conditions
  • Built with a digital control panel that allows you to adjust the temperature and jets without leaving the tub ensuring a seamless and enjoyable soaking experience
  • Equipped with 2 easy-lift handles to conveniently help move the empty spa pool while the insulated cover and safety locks that keep the water warm when the spa is not in use
  • Includes a chemical floater and 2 filter cartridges to ensure the water stays clean with little maintenance work; Disclaimer: This spa cannot be used in temperatures less than 39 degrees Fahrenheit
7
Coleman SaluSpa Inflatable Hot Tub Spa | Portable Hot Tub with Heated Water System and 140 Bubble Jets | Fits Up to 4 People

Rating is 4.4 out of 5

Coleman SaluSpa Inflatable Hot Tub Spa | Portable Hot Tub with Heated Water System and 140 Bubble Jets | Fits Up to 4 People

  • 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.
  • ENJOY THE ULTIMATE SPA EXPERIENCE: Nothing beats the feeling of sinking into a warm, bubbling hot tub after a long, hard day while jets project bubbles to massage your back, neck, and shoulders..Water Pump : 0.7A. Massage Tube Blower : 6.5A.Working Pressure : 1.2PSI (0.08Bar)
  • EASY TO OPERATE: The digital control panel lets you dictate the water temperature (up to 104 degrees Fahrenheit) and pressure of the jets. A power saving timer can even automate the temperature of the spa up to 72 hours prior to save energy and money.
  • DURABLE & INNOVATIVE CONSTRUCTION: The spa's durable PVC material and I-beam construction offer superior strength and stability while ensuring your hot tub never loses its shape.
  • SIMPLE SETUP & MAINTENANCE: No extra tools are needed to setup This portable spa. Simply inflate and deflate with the included pump. A cover comes with for an extra Safety feature, maintain the water's warm temperature, and prevent debris from getting in the tub.
  • BENEFITS OF A PORTABLE HOT TUB: With lift handles, the spa can be moved around with ease. This spa deflates compactly for optimal storage and transportation purposes.
8
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 4.3 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.


What can cause high pH in a hot tub?

There are several factors that can cause high pH levels in a hot tub. Some common causes include:

  1. Contaminated water: If the water in the hot tub is contaminated with impurities such as dirt, oils, body lotions, or cosmetics, it can lead to an increase in pH levels.
  2. Insufficient or excessive use of chemicals: Improper use of chemicals such as pH increasers or alkalinity increasers can cause pH levels to spike.
  3. Poor water circulation: Inadequate water circulation can lead to stagnant water, which can result in high pH levels. Proper filtration and circulation are essential to maintain balanced water chemistry.
  4. High alkalinity levels: If the alkalinity levels in the water are too high, it can cause the pH levels to rise as well.
  5. Bicarbonate or carbonate sources: The presence of bicarbonate or carbonate sources in the water, such as high levels of calcium hardness, can contribute to high pH levels.
  6. Carbon dioxide outgassing: Carbon dioxide can escape from the water when it is exposed to air, resulting in an increase in pH levels.


It is important to regularly test and balance the water chemistry in a hot tub to maintain optimal pH levels and ensure a safe and comfortable experience.


What can cause foam in hot tub water?

There are several factors that can cause foam in hot tub water:

  1. Residual chemicals: High levels of residual chemicals, such as sanitizers, can form foam when they react with organic substances in the water.
  2. Body oils and lotions: Lotions, oils, and cosmetics that are on the skin or introduced to the water can contribute to foam formation.
  3. Soap residue: If soap or shampoo is brought into the hot tub, even in small amounts, it can lead to persistent foam.
  4. Dirty or clogged filters: Filters that are dirty or clogged may not effectively remove impurities from the water, which can contribute to foam formation.
  5. High pH levels: Imbalanced pH levels in the water can create conditions favorable for foam to develop.
  6. Algae or bacterial growth: If there is an excessive amount of algae or bacteria present in the hot tub, it can result in the formation of foam.
  7. Hard water: High mineral content in the water, often referred to as hard water, can create foam when combined with soap or detergent.


It's a good practice to regularly clean and maintain the hot tub, test the water chemistry, properly balance the chemicals, and shower before using the hot tub to minimize the occurrence of foam.


How to clear up cloudy hot tub water?

There are several steps you can take to clear up cloudy hot tub water:

  1. Test the water: First, use a water test kit or take a water sample to a pool supply store for testing. This will help you determine the pH and alkalinity levels, as well as the sanitizer (chlorine or bromine) levels. Imbalanced water chemistry is often the cause of cloudy water in hot tubs.
  2. Adjust pH and alkalinity levels: If the pH and alkalinity levels are not within the recommended range (pH: 7.2-7.8, alkalinity: 80-120 ppm), you may need to add pH increaser or pH decreaser and alkalinity increaser or alkalinity decreaser accordingly. Follow the instructions on the product packaging and retest the water after a few hours.
  3. Shock the water: If the sanitizer levels are low or there is a build-up of organic contaminants, you should shock the hot tub water. This can be done by adding a non-chlorine shock or a chlorine shock product to the water. Read the instructions on the shock product carefully and follow the dosage recommendation, as it may vary depending on the size of your hot tub.
  4. Clean the filter: A dirty or clogged filter can also contribute to cloudy water. Remove the filter and clean it thoroughly, either by rinsing it off or soaking it overnight in a filter cleaner solution. Rinse it again before reinserting it into the hot tub.
  5. Remove debris: Any debris or foreign materials in the hot tub should be removed manually using a net or skimmer. This can include leaves, bugs, or any other objects that may be causing the water to become cloudy.
  6. Run the filtration system: Make sure your hot tub's filtration system is running regularly and for an adequate amount of time. This will help circulate and filter the water, removing fine particles and aiding in water clarity.
  7. Monitor and adjust: Once you have completed these steps, continue to monitor and test the water regularly to maintain proper balance and prevent future cloudy water issues. Remember to keep up with regular maintenance and cleaning routines to ensure the water remains clear and sanitary.


If the water quality does not improve or if the cloudiness persists, it may be necessary to consult with a professional hot tub technician for further assistance.

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