Hot tubs provide a relaxing retreat, but over time, they can accumulate stubborn stains from oils, minerals, and other contaminants. Whether they’re from body oils, hard water deposits, or mold, these stains can detract from the spa’s appearance and affect water quality. Fortunately, there are several methods you can use to remove these stains and keep your hot tub looking fresh and inviting. Here’s a step-by-step guide on how to get rid of stubborn stains in your hot tub.
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Why Do Hot Tub Stains Form?
Before we dive into the cleaning process, let’s look at some common causes of stubborn stains in your hot tub:
- Body Oils and Lotions: Over time, oils from your skin and products like lotions, sunscreen, and hair products can accumulate on the water’s surface and cling to the hot tub’s walls and jets.
- Hard Water Deposits: Calcium and other minerals in hard water can leave behind unsightly white or cloudy stains on the surface.
- Mold and Mildew: If your hot tub isn’t properly cleaned or maintained, mold and mildew can form around the waterline and in the crevices.
- Algae: In outdoor hot tubs, algae can grow in the water if it’s not treated correctly.
Step-by-Step Guide to Removing Stubborn Stains
1. Drain the Hot Tub
Before you start cleaning, it’s best to drain the hot tub to make the cleaning process easier and more effective.
- Turn off the power and disconnect the hot tub from the electrical source.
- Use the drain valve or a submersible pump to remove all the water.
- Once drained, use a wet/dry vacuum or towels to soak up any remaining water.
2. Clean the Hot Tub Shell
Once the water is drained, you can focus on cleaning the hot tub shell.
- Use a non-abrasive cleaner: Choose a hot tub-safe cleaner that’s non-abrasive and designed to remove stains. You can use a specialized hot tub cleaner or a mild dish soap solution.
- Apply the cleaner: Spray the cleaner on the stained areas, especially along the waterline, jets, and seat areas where oils and grime tend to collect.
- Scrub gently: Use a soft cloth, sponge, or a soft-bristled brush to scrub the surface. Avoid using abrasive scrubbers, as they can scratch the surface.
- For stubborn stains, you may need to apply a cleaner that’s specifically designed for your stain type (e.g., calcium deposit remover for hard water stains or mold remover for mildew).
3. Remove Calcium and Hard Water Deposits
If you notice white, chalky stains along the waterline or on the shell, these are likely due to hard water deposits.
- Use a descaling cleaner: For mineral deposits like calcium, a specialized descaling or hard water cleaner will break down the buildup.
- DIY solution: You can also use white vinegar or a citric acid solution. Soak a cloth in vinegar, and wrap it around the stained area. Let it sit for 10-15 minutes before scrubbing with a brush.
- Rinse thoroughly: Once the stains are removed, rinse the area thoroughly to ensure all cleaning residue is washed away.
4. Clean the Hot Tub Jets
The jets are one of the most overlooked parts of a hot tub, but they can harbor bacteria, mold, and debris that contribute to staining.
- Clean the jets: Use a jet cleaning solution or vinegar to clean inside the jets. You can use a toothbrush to scrub around the jet openings.
- Run a cleaning cycle: After manually cleaning, run a cleaning cycle to flush the system. This helps ensure the pipes and internal components are also free of debris and buildup.
5. Remove Mold and Mildew
If you notice black or green spots around the waterline, they may be signs of mold or mildew growth.
- Use a mold and mildew remover: Purchase a specialized mold remover that’s safe for hot tubs. Be sure to follow the product’s instructions.
- DIY solution: A mixture of water and hydrogen peroxide (1:1 ratio) can also help kill mold and mildew. Spray the solution on the stained areas and let it sit for 10 minutes before scrubbing.
- Check the cover: Mold and mildew can also accumulate on the hot tub cover. Clean it with the same mold remover or solution to prevent further contamination.
6. Clean the Filter
A clogged or dirty filter can contribute to stains in your hot tub. Cleaning your filter regularly is essential for maintaining water quality and removing contaminants.
- Remove the filter: Take out the filter and rinse it with a garden hose to remove debris.
- Soak the filter: If the filter is heavily soiled, soak it in a filter cleaner for a few hours to break down oil and grime buildup.
- Replace the filter if necessary: If the filter is too damaged or clogged, consider replacing it with a new one.
7. Refill the Hot Tub
Once your hot tub is cleaned, it’s time to refill it with fresh water.
- Close the drain valve and replace any covers or panels you removed.
- Fill the tub slowly, making sure the water reaches the proper level.
- As the tub fills, check for any leaks or issues with the plumbing or jets.
8. Balance the Water Chemistry
After filling the hot tub, you need to balance the water chemistry to ensure it’s safe for use.
- Test the water: Use a water testing kit to check the pH, alkalinity, and sanitizer levels.
- Adjust the chemicals: If necessary, adjust the water chemistry to bring it into the proper range. This will help prevent stains and cloudy water in the future.
Prevention Tips
- Regular cleaning: Clean your hot tub regularly to prevent stains from building up in the first place. This includes draining the water every 3-4 months and cleaning the filters and jets.
- Use a cover: Always cover your hot tub when not in use to keep debris and contaminants out.
- Use a stain and scale preventer: These products can help reduce the likelihood of mineral buildup and stains, especially in areas with hard water.
- Shower before use: Encourage guests to shower before using the hot tub to minimize the amount of oils and lotions they introduce into the water.
Conclusion
Stubborn stains in your hot tub can be a nuisance, but with the right approach, you can restore your spa to its sparkling condition. Regular cleaning, proper maintenance, and using the right cleaning products will keep stains at bay and help ensure your hot tub remains a relaxing and inviting space. By following these steps, you can enjoy a stain-free hot tub for longer and create a safe, healthy, and enjoyable experience every time you take a soak.