You followed the cleaning tips and advice you have come across online. You even bought the popular hot tub cleaning tools and solutions, yet you noticed that your hot tub water is turning green.
What’s the cause of this?
And more importantly, how do you fix it?
If you are experiencing the same dilemma, the one solution that comes to mind for most people is to hire a professional cleaning service. But what if we tell you that you can remedy green hot tub water on your own?
Sounds interesting? Read below!
There are 4 common reasons why your hot tub water turns green. These are:
If there are slimy coating inside the hot tub spa, then most likely that your hot tub is under algae attack. Please note that algae may not appear green at all times. Sometimes it has black or mustard color.
Algae starts to thrive in your hot tub if the water’s pH level is imbalanced. Moreover, algae spread fast if the hot tub cover is removed since they need sunlight to thrive.
High metal content
Tap water is consist of different metal contents, and one of which is copper or iron. And whenever you shock the water, there is a possibility that the oxidation of chemicals causes the copper content of the water to react, thus giving the greenish look of the water.
Not Enough Sanitizer
Aside from imbalanced water, low sanitizer also causes green hot tub water.
Without enough sanitizer in the water, bacteria and germs will thrive in the water. This also makes a great environment for algae to grow. Sanitizers destroy the microorganisms present in the water.
Dirty Filtration System
A hot tub with an excellent filtration system pumps hot tub water through a microfilter. What this microfilter does is to trap all contaminants so that they can be easily removed from the hot tub water.
Now, imagine if the system that supposedly cleanse the water has become a place where microorganism thrive, breed, and multiply? Gross!
- Conduct a spa system flush. This is a cleaning method that cleans the inside of your hot tub. Why? Because algae may be lurking in the plumbing parts of the hot tub like the pipes, jets, hoses, etc.
- Always test the water chemistry of your hot tub. This way, you’ll know whether to increase the pH or lower it.
- Since low sanitizer is one of the causes of green hot tub water, it is also highly suggested that you constantly shock the water. Sanitizer is the first line of protection against germs. Its main function is actually to disinfect the water. This is why experts always suggest to shock the pool every now and then.
- Perform a thorough cleaning on the hot tub filters. It is also best to replace the filter yearly. Doing so will maintain the quality and efficiency of the filter. Also, don’t forget to choose a filter with antimicrobial properties.
- Chlorine is the most common sanitizer used when cleaning hot tub water. But since there is a high chance that the oxidation causes copper content of the water to turn slightly green, you need to use non-chlorine shock instead.
Read more: Hot Tub Water Care Guide
Always follow the recommended hot tub cleaning tips to keep your hot tub water pristine and clean looking. By knowing the causes of green hot tub water and leaning the ways to conquer them will help you maintain a germ-free hot tub.