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One crucial aspect of owning a hot tub is knowing how to maintain it. By maintenance, I mean everything that has to do with keeping the tub clean and healthy for swimming. One of those maintenance structures you need to adapt is the monitoring of the pH level.
You may ask, why do I need to maintain a proper pH level? An appropriate level of pH helps other chemicals to do their job. However, having too high of the pH causes some chemicals like chlorine to be less effective. In fact, having a pH level of 8.2 will reduce the effectiveness of chlorine by 15%. Hence, the need to lower the pH level becomes essential.
Are you still wondering how your tub pH can be reduced, or do you still need more understanding of how high pH affects your tub? Does baking soda raise pH in hot tub? Or does it lower it?
Keep reading because we will be discussing as we dive into details.
Why Do I Need to Lower Hot Tub pH?
To answer this question, you need to know your pH benchmark. The optimal pH of your tub stands between 7.2 to 7.8. Any value below or above the number is abnormal to your tub, and necessary attention is needed to bring it back to normal.
So why do you need to lower your pH? Like earlier said, the higher your pH, the less effective is the chlorine in your pool. Well, with the exception of bromine. The effectiveness of bromine in your tub is not dependent on the pH balance. Still, it would help if you kept your pH balanced.
In simple terms, you must lower your pH level because the tub’s pH is high. A high pH means the water is basic, and this causes water to scale on your filter, jets, pipes, and other accessories. Water scale can also cause a reduction in water circulation hence increasing water pressure, thereby stressing the hot tub equipment.
When you test and find out your tub pH is high, the next step is to find means to lower the pH before it starts causing problems.
So here is how to reduce your pH level.
Can Baking Soda Lower pH Level in a Hot tub?
Baking soda is a chemical compound with a pH level of 8. It is also known as sodium bicarbonate, and an essential chemical compound for raising the pH level of your tub or pool.
I have seen lots of searches of people looking for means to lower water pH using baking soda.
Here is what you need to know. When people dissolve baking soda in water, it produces an alkaline solution. Therefore, when you have a low pH, it means the water is acidic. To boost the pH level, you would need to add baking soda, and you will need to add a lot of it to get a significant change.
How To Lower pH in Hot Tub Home Remedy?
You can easily purchase pool supply products from nearby stores to regulate the pH of your hot tub. However, if you don’t have these products available to buy, some quick home remedies are available.
Adding vinegar can help reduce your tub’s pH, and here is how.
- Turn on your circulating system and allow it to run for an hour. After an hour, test the hot tub for pH level. The reading should fall between 7.2-7.8. If it’s above 7.8, move to the next step;
- Measure out 4 cups of vinegar and pour it out directly into the water. You either use white or apple cider vinegar;
- Run the pump to ensure the vinegar is appropriately circulated;
- Wait for a few hours for the water to recalibrate before carrying out the next test;
- If the test shows that the pH is not still balanced, add more vinegar in an increment of 4 cups until the pH is balanced.
How Much Baking Soda to Raise Alkalinity in Hot Tub?
Baking soda can be used to raise both the pH and the alkalinity of a hot tub, but the result is more significant on the alkalinity.
Generally, a tablespoon of baking soda can raise the alkaline level in 100 gallons of water. So, for 1000 gallons, you would need 10 tablespoons. Make sure to turn on your jet and allow it to run for 2-3 hours in order to keep the water circulating.
Meanwhile, to raise the pH level using baking soda from 7.2 to 7.6, you would need 21 pounds of baking soda. This will not be good for your tub as it will significantly increase the alkaline to the level that’s not fit.
Regular monitoring of the pH level of your tub is an essential task every hot tub owner should incorporate into their daily life. Keep an eye on the pH level and make sure it’s between 7.2-7.8. For any reason it falls below or above the specified value, never hesitate to balance.