24 hrs
Wiki User
∙ 2012-07-05 20:53:28No
Any time you like and you spread it around.
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.
about 6 hour after shock or sooner if you use a shock and swim
Anywhere from a couple of days to a few weeks after adding the Shock, depending the extent of the problem and several other chemical factors (pH, alkalinity, conditioner, etc.). If you don't see any improvement in 1-3 days, I would suggest taking a water sample to your local pool supplies dealer. They can test it for you and recommend an appropriate course of action to get you pool back to normal as soon as possible.
To lower pH (and in combination with aeration to lower total alkalinity),
Stop adding salt to the pool and use tablets and shock when needed.
Chlorine will not raise the total alkalinity level in a pool. However, if you are trying to raise the total alkalinity, you can add small amounts of baking soda.
Any time you like
It takes approximately 2 days or 48 hours for alkalinity to clear pool water. During the clearing process, it is best not to go into the pool.
Your pool water turned green immediately after adding pH Plus because the chemical had increased the pH level to high. You may need to adjust the alkalinity levels of the water using another pool chemical such as pH Minus of pH Alkalinity Plus.
Proper chemistry: pH, Chlorine, Alkalinity, TDS. Once all of that is okay, shock the pool once in a while with chlorine if need be.