It is a fact that rain will decrease your Total Alkalinity level in the pool over time, requiring a pool owner to raise the alkalinity. Rainwater has a Total Alkalinity near zero. Heavy rains will dilute your pool alkalinity level, causing it to fall by 5-10 ppm a day.
Does rain water make pH go up in pool?
Rain almost immediately causes the pH (Potential Hydrogen) in the pool water to rise while also reducing the TA (Total Alkalinity) slightly via dilution. Higher pH will cause more of the chlorine in a pool to become inactive or “fall asleep” reducing it’s effectiveness.
What lowers alkalinity in a pool?
To lower the alkalinity in your pool, try using a strong acid like muriatic acid, sodium bisulfate, or sulfuric acid all of which will lower the alkalinity. If your pool water is a little murky or your pool filters seem to be plugged with calcium deposits, then your pool may be suffering from high alkalinity levels.
What causes pool alkalinity to drop?
Causes of Falling Alkalinity
A decrease in pH can be caused by excessive rainwater entering the pool and diluting the water, acid rain which can directly drive both your pH and alkalinity levels down, and even bodily fluids from swimmers such as sweat and urine (oh yeah, it happens).
How do I bring my alkalinity down?
The two most popular chemicals available to help you lower the total alkalinity in your swimming pool are muriatic acid and sodium bisulfate (also known as dry acid).
Why is my pool alkalinity high?
High alkalinity means your pool water is buffering too much and possibly diluting the effectiveness of chlorine to the point it is unable to sanitize some contaminants in your pool or hot tub. Lowering total alkalinity is a two-step process. The first step is to lower pH by adding muriatic acid.
Is it safe to swim in a pool with high 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.
How do I lower the alkalinity in my pool naturally?
Muriatic acid (hydrochloric acid) is the most common way to lower your pool’s total alkalinity level. With a pH level of between 1 and 2, it’s inexpensive and strong enough to kill mold, remove rust, and rid the pool of calcium deposits.