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Acids and Bases

Can you still swim in a pool with high alkalinity?

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2009-08-10 03:20:34
2009-08-10 03:20:34

Yes, It will just make your skin itch

Answer:

Lower Your Pool Alkalinity

You want to run your pool water alkalinity level between 80-100ppm, not up to 150 as some may suggest. Most pools guys get their info. on how to balance pools from your local water company. Yes, this is correct. It's called the Langelier Index, which was originally designed for public water systems. This index was never intended for pools.

In the 1950's, when pools started to come into the mainstream, this was the only index available, so it was used to balance pools and hot tubs.

The Hamilton Index, which I use, is much more pool-friendly and is specifically designed for pools. It takes into consideration acid rain, drag-off, heat, the sun, organic and inorganic matter in the pool, etc...

While I don't completely agree with the Hamilton Index, it is much closer to how a pool should be balanced and will save you much time and money in the long run.

Higher alkalinity levels (120ppm or above) can be reduced using pool acid. There are mainly two types of acid:

liquid hydrochloric acid (muriatic acid)

dry acid (sodium bisulphate)

Take care when using acid because it may affect your pH.

While your filtration system is off and the water is motionless, stand in the deep end and slowly add (don't dump the product or go too fast), the pool acid,

or alkalinity minus if you wish, into the pool. Please remember to use goggles and heavy rubber gloves. If you spill any acid on your skin, it will probably eat through 3 layers of skin before you can wash it off. Remember, safety first.

Allow the water to sit for 2-3 hours, then fully circulate, usually 4-6 hours, then re-test your pool's alkalinity balance.

Using the proper chemicals and proper techniques will allow for better results.

You can go to the link below for a full chart on lowering your alkalinity.

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Related Questions


Low alkalinity in itself is not a problem. But it may affect your other water chemistry levels, such as chlorine. If there is not adequate free chlorine, you could have contaminates in your pool water.


Your question is confusing. You do not add alkalinity to a pool, alkalinity is a measurable component of a pools chemical balance. You normally only have to worry if a pools alkalinity is low and then the only impact is on the pool equipment. Baking soda is added to raise alkalinity, which is harmless to people so you can add baking soda to a pool while people are in it.



well ladybugs do not swim but they are still a live when they are in the pool but they do swim with there shells on


It may be uncomfortable to your skin.


You don't have to swim any distance. High school graduation is based on how well you do in the class, not in the pool.


it's best to only swim when the pool has a balanced pH


no it is not because you can get some in your foot.


More filtration. What is the filter run time? What delineates "perfect"? 3.0 Chlor, 7.5 pH, spot on alkalinity?


yes it is illegal to swim in a swimming pool that is closed


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Mostly just depends on the high school, if a pool is available to the school, and course options.


yes turtles can swim in a swimming pool unless you have clorokx then you canot have them in ur pool


Depends on how deep it is... If its waist high or above then of course!!


Yep! It's one way across the pool, but depending on the kind of pool your in it can still be a 50 or a 25


well, assuming that the pool is 25 m. (most are) then you would have to swim 40 laps to do 1 km since there are 1.6 km in a mile, you multiply 40x1.6=64 so you have to swim 64 lengths


Yes. its just hard to stop from getting cloudy with algae.


Chlorine levels should be between 1-5 ppm


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Alkalinity is basically an acid neutralizer. Without it your pH would drop very low and then you would have very acidic water. This is crucial in swimming pools because humans have a pH of 7.5 so that's why we want the pH 7.4-7.6 that way it is most comfortable to swim in. Hopefully this helps a little.


You can swim usually 24-36 hours after you add the liquid.


to swim 400 meters in a 25 METER pool, you must swim 16 lenghts, but to swim 400 meters in a 25 YARD pool, you must swim 17.5 lengths (so just swim 18 lengths)


I think it all depends on how acidic the pool is, if its not far over the level then i think its OK but personally i wouldn't. :-)


64 laps to swim a mile in a 25 meter pool



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