Initially, you can't. What you do to lower alkalinity is first lower the pH to under 7.2, but not lower than 6.9. Then you aerate the pool, by creating bubbles with your brush, or by running a water feature, if you have one. This will lower your alkalinity. Maintain this lower pH and aerating until you get your alkalinity where you want it. Then retest your pH. If it is now too low, you add Mule Team Borax, say a 1/4 a cup, and then retest. The borax will raise your pH without raising your alkalinity. See the poolforum.com for more help if needed.
Borax is an alkali. it has a pH of 9.2
The borax water solution is basic.
9.3
about 9.5 9.28
Initially, you can't. What you do to lower alkalinity is first lower the pH to under 7.2, but not lower than 6.9. Then you aerate the pool, by creating bubbles with your brush, or by running a water feature, if you have one. This will lower your alkalinity. Maintain this lower pH and aerating until you get your alkalinity where you want it. Then retest your pH. If it is now too low, you add Mule Team Borax, say a 1/4 a cup, and then retest. The borax will raise your pH without raising your alkalinity. See the poolforum.com for more help if needed.
Borax is an alkali. it has a pH of 9.2
The borax water solution is basic.
9.3
about 9.5 9.28
Soda ash (sodium carbonate), sold as pH Increaser, pH UP or Arm & Hammer Washing soda, will do the trick. You can also use borax, sold as 20 Mule Team Borax.
Adding an acid to a solution will lower it's Ph, but adding a base will raise it's Ph.
You should wait a couple of hours before swimming in a pool after adding PH minus. Check your water before swimming to ensure that the PH has been lowered.
Adding water will affect the pH. Adding water will shift the pH towards the neutral mark. In the case of an alkaline solution, there will be a decrease in pH.
Baking soda actually raises the total alkalinity of your pool. This does also increase your pH, but should only be used if your test kit shows low alkalinity. Otherwise you'll raise both pH and alkalinity and then have to use alkalinity down. Borax will raise PH and not alkalinity, but it raises it a lot. Start slowly by adding 1/2 box per 10,000 gal of water. Check the pH after 24 hours to see if you need more. Be sure to use only Borax and not detergent with Borax.Answer by TS( It must not contain detergent ) Only use 20 Mule Team Borax Laundry Booster. It can be found at any grocery store. Try using the same amount as you would with PH plus 1 lb. to 10,000 gallons, and wait 2 to 4 hrs. Then check your PH reading. If it's still low, add some more until you get it to 7.2 to 7.8 range. Caution - check your alkalinity before using borax, because borax raises PH only, without affecting your alkalinity. If your alkalinity is also low you can use baking soda to raise your alkalinity and PH. Baking Soda raises PH and Alkalinity at the same time. Baking Soda has the same ingredients as Alkalinity plus, but half the price. Take a look at this web site for more information on Borax. http://www.poolsolutions.com/gd/borax_20mule.html(copy & paste to use link)
Adding an acid the pH decrease.
Adding a base will make the pH go up (increasing of OH- ions concentration).