Why is my pool pH always high?

The most common reason for a consistently high pH level in pools is the use of liquid chlorine or a saltwater system as the primary sanitizer. Sodium hydroxide is produced, which has a pH of around 13. New pool plaster or pebble finishes will also raise pH in pools for about a year after installation.

Why is my pH level always high in my pool?

A high pH level can be caused by several factors, the main culprits being additional chlorine stabilizers and sudden increases in temperature. In addition, high pH runs a risk with your chlorine, as your chlorine will no longer disinfect fully. There are also physical consequences of high pH for swimmers.

How do I get rid of high pH in my pool?

To bring down pH, use a made-for-pools chemical additive called pH reducer (or pH minus). The main active ingredients in pH reducers are either muriatic acid or sodium bisulfate (also called dry acid). Reducers are readily available at pool supply stores, home improvement centers and online.

What happens if pool pH is too high?

What happens if pH is too high in pool? It can be difficult to adjust the pH of a swimming pool that is too alkaline. A pool with a too high pH level will have cloudy water. You can also see scaling on the walls of the pool, plus the chlorine will no longer do its job of disinfecting the water effectively.

How do I lower the pH in my pool naturally?

Why Is The pH Always High In My Pool?

Does shocking pool lower pH?

Adding shock breaks up the combined chlorine and creates an increase in free chlorine. This increase can spike your pool's pH level. Pool shock is available in both chlorinated or non-chlorinated versions. If your pool already has a high pH level, using chlorinated shock will only make things worse.

Will pH lower on its own?

Minerals that decrease the pH build up naturally over time. If you let this happen the pH is going to go down on its own. Continue to use the test strips to check the levels and you should change the water once it gets below the recommended pH. Although the next technique is a laborious one, it is definitely doable.

How do I keep the pH balance in my pool?

Is it safe to swim in a pool with high pH and alkalinity?

Can You Safely Swim in a Pool With High Alkalinity? As long as you have enough chlorine in your pool (around 3ppm for total chlorine) and the pH level is balanced (between 7.4 to 7.8), then a pool with high total alkalinity is still safe to swim in.

Can high chlorine cause high pH?

Pool Chemicals

Granulated or liquid chlorine is alkaline and, therefore, tends to raise the pH level.

Does chlorine bring pH up or down?

Using liquid chlorine raises the pH of the water.

When added to water, liquid chlorine (which has a pH of 13) makes HOCl (hypochlorous acid – the killing form of chlorine) and NaOH (sodium hydroxide), which raises pH.

Does adding chlorine lower pH?

High chlorine levels decrease the pH of your pool's water, making it more acidic. The more acidic the water, the higher the likelihood of corrosion.

Does liquid shock raise pH?

Using Liquid shock or liquid bleach regularly will increase your pH so make sure you keep an eye on your pH and alkalinity levels.

Will baking soda lower pH in pool?

Baking soda, also known as sodium bicarbonate is naturally alkaline, with a pH of 8. When you add baking soda to your pool water, you will raise both the pH and the alkalinity, improving stability and clarity.

How do I lower my pH level?

Do you adjust pH or alkalinity first?

Check Total Alkalinity (TA) first, then adjust for proper pH range. Proper TA will buffer pH, that is, it will help to prevent pH fluctuations. Use fresh, high quality test strips. Excessively high bromine or chlorine levels can result in false pH and TA readings.

How do you lower pH but not alkalinity?

You can decrease pH without lowering the Total Alkalinity using Carbon Dioxide (CO₂) injection for pH control. Still, this does not lessen one without an effect on the other. When CO₂ is injected into water, it forms carbonic acid (H₂CO₃), which will reduce the pH.

Why does my pool alkalinity keep rising?

Alkalinity rises because of excess hydroxide in hypochlorite chlorines. And in the case of calcium hypochlorite (cal hypo), there is not just excess hydroxide, there is excess carbonate too.

How much vinegar do I need to lower the pH in my pool?

Lower the pH of the water by measuring out four cups of vinegar and pouring it directly into the water. You can use either white household vinegar or apple cider vinegar.

How quickly does pH reducer work?

After adding pH increaser or decreaser you'll want to wait about two to four hours, although some chemical manufacturers suggest a full turnover cycle, before retesting. The smaller the increments you need to adjust for pH, the less time you'll need to wait for the results to become stable.

What happens if you put too much shock in a pool?

Although, if you overdo the shock treatment, you risk getting green hair from chlorine due to the excess chlorine oxidizing the copper in the water. You can execute a shock treatment with a few different types of pool shock, just be mindful of how much you're using.

Should I shock my pool every week?

How Often Should I Shock My Pool? Shocking your pool regularly will help to keep the water clean and free of contaminants. You should aim to shock your pool about once a week, with the additional shock after heavy use. Some tell-tale signs that your pool needs to be shocked are cloudy, foamy, green, or odourous water.

Should I adjust pH after shocking pool?

If the water's clear, you may not need to do the shock process. On the other hand, if CYA is astronomical, you may want to drain and replace some water first. That said, Absolutely pH first. And once it's good, don't bother testing pH again until the shock process is complete and FC has dropped below 10.

What type of chlorine lowers pH?

Chemically, this has to do with the relationship between the two constituents of chlorine that together are often referred to as “free chlorine”—hypochlorus acid and hypochlorite ions. Hypochlorus acid is the more effective disinfectant and it dominates at lower pH levels, so a lower pH is preferred for disinfection.

Can you over chlorinate a pool?

Of course, too much chlorine in pool water can be dangerous. Exposure to over-chlorination can provoke asthma, lung irritation, and potentially skin and eye irritation. As well as being potentially bad for you, it's bad for your pool.