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How to Drain and Clean a Hot Tub
August 24, 2024
-
By
John Harrington
Before you start, make sure to turn off the jets and circuit breakers. Whether you’re using a garden hose or a submersible pump, maintaining a vigilant watch on the process is key to preventing any unforeseen issues.
Step-By-Step Guide on How to Drain Your Hot Tub
Draining your hot tub can be done in a few simple steps.
Step 1: Turn Off the Jets
Start by turning off the jets and circuit breaker.
Step 2: Connect the Hose/Secure the Pump
If using a garden hose, connect it to the hot tub’s drain valve and direct the other end to a suitable drainage area.
If using a submersible pump, secure a rope to it and position it to hang over the spa’s side for easy retrieval afterward.
Step 3: Drain the Water
Open the drain valve and let the water flow out. Keep an eye on the process to ensure everything is going smoothly.
The pump will typically stop once the water level gets too low. The entire process usually takes between 1 and 2 hours.
Supply:
- Rope (optional)
- Drainage area
Post-Drain Cleaning Steps
This is comprised of three essential steps: removing debris and sediment, deep cleaning the hot tub shell, and addressing the hot tub lines.
Removing Debris and Sediment
Keeping your hot tub debris-free goes a long way in maintaining its cleanliness and performance. Regular removal of visible debris after each use and a thorough cleaning every quarter, or monthly if used daily, is recommended.
Supplies:
- Spa vacuum
- Skimmer net
- Cleaning wand (optional)
Step 1:
Use a skimmer net to remove any visible debris from the surface.
Step 2:
Use a spa vacuum to remove any debris that may have settled to the bbottom.
You can also use a specialized wand designed for cleaningtasks.
Never ignore the presence of debris and sediment as they can obstruct the filter and deteriorate water quality, which would impact the overall performance of the hot tub.
Deep Cleaning the Hot Tub Shell
We also recommend cleaning the hot tub shell after draining the water.
Supplies:
- White vinegar
- Microfiber cloth
Step 1:
In a small bowl, mix equal parts of white vinegar and water to create a solution.
Step 2:
Dampen a microfiber cloth with the solution and use it to wipe the shell.
Remember not to use regular household cleaners as they could potentially damage the hot tub’s surface.
Addressing the Hot Tub Lines
Cleaning the hot tub lines is crucial when it comes to maintaining the overall cleanliness of your hot tub.
Supplies:
- Pipe cleaner
Step 1:
Start by removing the filters from the hot tub.
Step 2:
Turn on all the jets and pour the recommended amount of product into the housing.
Step 3:
Run the jets for 15-30 minutes, then drain the hot tub.
Maintaining the Hot Tub Filter
Detaching and Inspecting the Hot Tub Filter
Make sure the hot tub’s power is turned off and access the filter compartment to remove the filter.
Once you’ve removed the filter, look for any signs of damage or excessive wear. Keep an eye out for symptoms such as:
- Cloudy or foamy water
- Dirty or discolored water
- Unpleasant odors
- Physical damage like cracked end caps or damaged pleats
As a general rule, you want to inspect your hot tub filter once a week, clean it monthly, and replace it annually, based on its condition and the usage frequency of the hot tub.
The Soak and Rinse Technique
The soak and rinse technique is one of the best ways to clean hot tub filters. Here’s how to do it.
Supplies:
- ACTIVE Hot Tub Filter Cleaner
- Garden hose
- Bucket
Step 1:
Fill a container with water and add ACTIVE Hot Tub Filter Cleaner, then place the filter in the solution and let it soak for 12 to 24 hours.
Step 2:
After soaking, rinse the filter again with a garden hose to remove any remaining cleaning solution.
Allow the filter to dry completely before reattaching it to the hot tub.
When to Replace Your Filter
As a general rule of thumb, hot tub filters should be replaced every 1-2 years, depending on usage.
Neglecting to replace a worn-out hot tub filter can lead to various issues such as filter damage, tears, or rips. To make matters worse, it can also affect other components of the hot tub system.
Caring for Your Hot Tub Cover
Given that, you must clean it regularly. That will prevent mold and mildew from growing on the fabric, which can affect its durability and functionality.
For the underside of the cover, you can use:
- A non-sudsing hot tub cleaner which can be removed with a paper towel or cloth
- A diluted solution of vinegar
- A 10% bleach solution
Refilling Your Hot Tub After Cleaning
Once you’ve thoroughly cleaned the hot tub, you can refill it with water.
Properly Refilling the Tub
Refilling the tub involves using a hose filter, filling to the correct level, and following the manufacturer’s instructions. By using a hose filter, you won’t have to worry about solids and chemical by-products getting into the tub.
Supplies:
- Hose filter
- Hose
Step 1:
Place the hose inside the filter and ensure that the water level is at least halfway up to the skimmer opening
That will ensure that the pump doesn’t run dry, which could cause overheating or damage.
Step 2:
To prevent air bubbles from forming, fill the hot tub using the correct fill pipe.
Balancing the Water Chemistry
To balance the water chemistry, you’ll need a few tools including a liquid drop-style titration test kit and spa test strips.
Supplies:
- Baking soda
- Test kit
- Chlorine or bromine
Step 1:
Use a test kit to determine the pH level of the water.
Optimal pH levels for a hot tub range from 7.2 to 7.8. If necessary, you can adjust the level with pH increasers or decreasers.
Step 2:
Use sodium bicarbonate (baking soda) or an alkalinity-decreasing product to lower the total alkalinity, if necessary.
Step 3:
As for sanitizer levels, they can be adjusted by adding a chlorine or bromine source to raise levels or a chlorine neutralizer to lower them.
Diluting the mixture with fresh water can also help control the sanitizer concentration.
Keeping Your Hot Tub Pristine Between Deep Cleans
To prevent buildup, we recommend wiping down the surfaces above the water line every week.
Rinsing the filters weekly is also a good idea as that will remove debris and performing a chemical rinse or replacing the filter at least once annually is advised.
Regular testing of the water is also crucial. More specifically, you want to check the total alkalinity, calcium harness, and sanitizer levels.
How to Drain and Clean a Hot Tub – FAQs
Is it OK to drain a hot tub and leave it empty?
Yes, it’s fine to drain a hot tub and leave it empty, but take precautions to avoid any damage.
How do I completely empty my hot tub?
To completely empty your hot tub, turn off the power at the circuit breaker, attach a garden hose to the drainage spigot, and open the ball valve to allow the water to drain.
Be careful not to cross-thread the hose.
What is the best thing to clean a hot tub with?
You can wipe away sediments, dirt, and debris with a specialized hot tub cleaner and a soft cloth. Avoid using regular household cleaning products.
How often should I clean my hot tub filter?
You should clean your hot tub filter monthly and consider replacing it annually, depending on its condition and how often you use the hot tub.
How do I refill my hot tub correctly?
Make sure to put the hose inside the filter and maintain the water level at least halfway up the skimmer opening. That will ensure proper filtration and water circulation for a clean and enjoyable hot tub experience.
How do you clean hot tub plumbing?
The best way to clean the pipework is by using a commercial pipe cleaner. Simply pour the recommended amount into the filter hosing and run the jets for a cycle before draining the tub.
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John Harrington
John Harrington, with over 20 years of experience in pool and spa maintenance, generously shares his expertise on the ACTIVE blog. His in-depth knowledge and practical advice provide invaluable guidance for maintaining pristine pools and hot tubs. John's insights help enthusiasts and homeowners ensure their aquatic havens are always in top condition.
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