Leo Froth is a writer and hot tub installation expert. He enjoys sharing his practical knowledge and experience with readers, helping them navigate the installation process. Leo's articles are a valuable resource for anyone looking to install a hot tub at home.
As a hot tub owner, one question that might frequently cross your mind is, "How often should I replace the water in my hot tub?" The answer to this is typically every 3 to 4 months, depending on the usage and maintenance. However, there are several factors that can influence this frequency.
Dive into the Basics of Hot Tub Water Care 🌊
Hot tub water requires regular care to ensure it remains clean and safe. You should test your hot tub water at least once a week with a test strip to monitor the pH and sanitizer levels. This is crucial for maintaining the water's balance and preventing the growth of bacteria. Additionally, using safe hot tub chemicals can help keep your water clean for longer periods.
As an Amazon Associate I earn from qualifying purchases.
Here is an example of how to ensure your hot tub water is correctly balanced.
This post by Alfresco Life shows the importance of maintaining the balance of your hot tub water. Now, let's delve into what can happen if your water is unbalanced.
Remember, unbalanced water can cause skin irritation and damage your hot tub components. So, regular testing and maintaining the right chemical balance is key.
Decoding the Right Time to Refresh Your Hot Tub Water ⏱️
While the general rule of thumb is to change your hot tub water every 3-4 months, certain situations may require you to replace it sooner. These include:
- Heavy usage: If your hot tub is frequently used, or used by several people at a time, you may need to change the water more often.
- Algae or cloudiness: If you notice the water becoming cloudy or green, it's time to replace it.
- Odor: A strong chemical or foul smell is a clear sign that you need to change your hot tub water.
Also, if you own an inflatable hot tub, the care and maintenance may differ slightly. Make sure you follow the manufacturer's instructions for the best results.
To help you understand better, here is a step-by-step video tutorial on how to change water in an inflatable hot tub.
Now that you've learned how to change the water in your inflatable hot tub, let's move on to discuss the benefits of salt water hot tubs.
Why Salt Water Hot Tubs are Making Waves 🌊
One way to extend the life of your hot tub water is by using a saltwater system. Salt water hot tubs use a chlorine generator that breaks down salt into chlorine, keeping the water sanitized for longer. This means you can go up to 6 months without changing the water. Plus, salt water is softer on the skin and requires less maintenance.
Many hot tub owners have shared their positive experiences with salt water systems.
As this user points out, salt water hot tubs provide a silky, clean, and clear spa experience, with zero harsh chemicals odors, itchy skin, or eye irritation.
Your Go-To Guide for Keeping Hot Tub Water Crystal Clear 💎
Here are a few hot tub maintenance tips to help you maintain clean and safe water for longer periods:
- Regularly test and balance your hot tub water.
- Use a hot tub cover when not in use to keep debris out.
- Clean your hot tub filter frequently.
- Shower before using the hot tub to reduce oils and lotions that can cloud the water.
As an Amazon Associate I earn from qualifying purchases.
Lastly, always remember to adjust your hot tub temperature control to a safe level to ensure a comfortable and relaxing soak.
Hot Tub Maintenance and Water Replacement Quiz
Test your knowledge about maintaining your hot tub and how often you should replace the water.
Learn more about 🔍 Hot Tub Maintenance and Water Replacement Quiz or discover other Hot Tub Info quizzes.
Recommended Products
Our Recommendation POOLPURE PLF6CH-960 Spa Filter Replaces PJW60TL-F2S, Jacuzzi Filters J-300, J400, Unicel 6CH-960, Filbur FC-2800, 6540-476, 6540-383, Hot Tub Filter with Closed Handle(Not be Removed) 2 Pack (14 7/8")
$68.99
Our Recommendation iBirdie Outdoor Waterproof and Weatherproof Hot Tub Cover 80 x 80 inch 600D Heavy Duty Square Cover Protectors SPA Protective Cover Cap
$45.99 
Our Recommendation AquaChek SPA 6-in-1 Test Strips - Spa Test Strips for Total Bromine, Total Chlorine, Free Chlorine, pH, Total Alkalinity, and Total Hardness - Professional Water Quality Testing Kit (50 Strips)
$9.99
Our Recommendation Erchon 6600-167 Temperature Sensor Replacement for Sundance Jacuzzi Spa Hot Tubs, Spas Sensor Parts with Box End Connectors for LCD Control Systems
$22.99
Our Recommendation MySpaCover Custom Hot Tub and Spa Cover Replacement, Energy Efficient with EPS Insulation Foam for Any Shape and Any Size up to 96 Inch, 6 Inch Taper
$549.00
Our Recommendation Dive Rite in Hot Tub Salt and Spa Salt for All Salt Water Sanitizing Systems and Chlorine Generators Including Hotspring, Jacuzzi, Caldera, and Chloromatic - 8 Pounds
$28.99
Our Recommendation The Cover Guy Premium Hot Tub Covers, Energy-Saving Design - Custom Made Replacement Spa Cover 5, 6 or 4 Inch Taper - Built for All Climates.
Our Recommendation POOLPURE PLFPRB25-IN Hot Tub Filter Replace Unicel C-4326, Guardian 413-106, Filbur FC-2375, FC-2370, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, 5X13 Drop in Spa Filter 2 Pack
$34.99
Our Recommendation EIIDAR Salt Chlorine Generator Salt Water Pool Chlorinator System with USA Titanium Salt Cell, Designed for Hot Tubs & Swim Spas, Chemical-Free
$139.99
Our Recommendation Leisure Time E5 Spa 56 Chlorinating Granules for Spas and Hot Tubs, 5-Pounds ( Packaging may vary )
$47.25
Our Recommendation HTH Spa 86134 Clear Chlorinating Sanitizer, Spa & Hot Tub Chemical Controls Bacteria and Algae, 2.25 lbs
$19.79
Our Recommendation SpaGuard Spa Chlorinating Concentrate - 5 Lb
$67.99
Our Recommendation Spa and Hot Tub Cover- 16-mil Hot Tub Thermal Blanket- Square Hot Tub Insulation Blanket Hot Tub Solar Cover Solar Blanket Cover Bubble Cover for Outdoor Hot Tubs (7 × 7 FT/210 × 210 CM)
$51.99
Our Recommendation Peak Products Hot Tub Salt and Spa Salt for All Salt Water Sanitizing Systems and Chlorine Generators Including Hotspring, Jacuzzi, Caldera, and Chloromatic - 6 Pounds
$31.99
Our Recommendation XMK 6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring
$26.89
Our Recommendation 5.5KW 240V Heating Element with Mounting Hardware Compatible With Titanium Flo-Thru Balboa etc Hot Tub Most Brands, Universal Applicable in Spas Electric Heaters Or Swimming Pools
$38.79
Our Recommendation Coleman SaluSpa AirJet 2 to 4 Person Inflatable Hot Tub Round Portable Outdoor Spa with 60 Soothing AirJets and Insulated Cover, Black
$469.99
Our Recommendation FROG @ease Test Strips for Hot Tubs for use only with FROG @ease In-Line and Floating Sanitizing Systems for Spas up to 600 gallons, Measures low levels of Chlorine, Quick and Easy Test Strips
$9.99
Our Recommendation SpaGuard Enhanced Shock (2 lb)
$21.99
Our Recommendation Hot Tub Chemicals Starter Kit - Chlorine Spa Starter Kit Chemicals for Hot Tub - Convenient Hot Tub Starter Kit & ph Control Kit - Effective Chlorine pH Balancer & Inflatable Hot Tub Chemical Kit
$89.99
Our Recommendation RELXTIME Inflatable Hot Tub 6 Person, Portable Air Jet Spa Outdoor Heater Blow Up Hottub with 130 Bubble Jets and Built in Heater Pump, 4 Non-Slip Spa Seat, 2 Filter Cartridge, Insulated Cover, Grey
$499.79
Our Recommendation Bestway Miami SaluSpa 2 to 4 Person Inflatable Round Outdoor Hot Tub Spa with 140 Soothing AirJets, Filter Cartridges, Pump, & Insulated Cover, Black
$434.29
Our Recommendation AKEfit Square Hot Tub Cover, Heavy Duty 600D Oxford SPA Covers for Hot Tub, UV Protection & Windproof, Waterproof Hot Tub Cover Protector Fits 95''x 95'', Grey
$65.99
Our Recommendation Square Hot Tub Cover 420D Heavy Duty Waterproof UV Protector Spa Hard Covers for Hot Tub 85''Lx85''Wx12''H Black
$38.99
Our Recommendation AquaSpa Easy Set Pool Spa Hot Tub Filter Replacement Cartridges for Type PM_SPA-P154_Grey/Black/White/Wine, Fold White Filter Paper for Many Massage Pool Models(4 PC) (PM_PG02000000084_Blue)
$28.87
Our Recommendation Intex 28481E Simple Spa 77in x 26in 4-Person Outdoor Portable Inflatable Round Heated Hot Tub Spa with 100 Bubble Jets, Filter Pump, and Cover, Black
$399.99
Our Recommendation RELXTIME Portable Inflatable Hot Tub 4-6 Person AirJet Outdoor Spa 73" x 25.6" Blow Up Hottub with 130 Bubble Jets, Filter Cartridge, Insulated Cover, Grey
$499.85
Our Recommendation EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine
$11.99
Our Recommendation YiaMia Hot Tub Lights, Submersible LED Pool Lights with Suction Cup and Remote Control, 2-Pack RGB Color Battery-Powered Waterproof Lights for Ponds, Decoration, Parties, Vase Bases, Spas, Aquariums
$9.99
Our Recommendation Pool and Hot Tub Test Strips - Medical-Grade Precision 3-1 4-1 7-1 Pool Test Kit - Testing pH, Free Chlorine(Bromine), Total Alkalinity & Cyanuric Acid and So on - Pool Water Test Kit
$6.99
Our Recommendation FROG @Ease Replacement SmartChlor Chlorine Cartridge - 3 Pack (01-14-3258)
$53.95
Our Recommendation Bestway St. Lucia SaluSpa 2 to 3 Person Inflatable Round Outdoor Hot Tub with 110 Soothing AirJets, Filter Cartridge, Pump, and Insulated Cover, Gray
$461.36
People also asked
All Rights Reserved © 2025