Guest parimal Posted September 24, 2005 Report Share Posted September 24, 2005 Does any one have a calculation / equation for determining the amount of acid to be added to the water for bringing down the pH level? Following data is available: current pH desired pH volume of pool water TO FIND quantity of muratic acid (Hydrochloric Acid) Quote Link to comment Share on other sites More sharing options...
Tomcat Posted October 5, 2005 Report Share Posted October 5, 2005 No formula, but my experience is it takes very LITTLE muriatic acid to lower ph. I'm talking like a teaspoon for my 500 gal to drop from 8.0 to 7.2. Quote Link to comment Share on other sites More sharing options...
hottub.pool_boy Posted October 6, 2005 Report Share Posted October 6, 2005 not a recommended item to have hanging around. especially if children are in the home. i could see if you have a swimming pool and you already have it. Please be careful, open cap down wind. Quote Link to comment Share on other sites More sharing options...
Jim_The_Jim Posted October 7, 2005 Report Share Posted October 7, 2005 Does any one have a calculation / equation for determining the amount of acid to be added to the water for bringing down the pH level? Following data is available: current pH desired pH volume of pool water TO FIND quantity of muratic acid (Hydrochloric Acid) Only use muratic acid if you wear gloves, respirator (don't breath fumes), and plastic cloths. A couple drops on your skin and you will regret it. The only way to determine the quantities of acid is to do an acid demand test on the water. I suggest using a Taylor test kit. Because every vessel of water is different in it's buffering against pH changes, there are no formulas that work. When you us an acid demand test, you are actually putting acid in the sample of water and changing the pH of the sample. When the color of the sample matches the color of the pH, count the drops used and go to the "acid demand chart". Each vessel of water has a different reaction to acids, this is due to many things, like the Total alkalinity, the calcium levels, the amoung of total dissolved solids, and if the water has boric acid in it or not. With the "acid demand test" you can put the quantities in the water and not have to worry or even test a second time, unless you are wanting to see for yourself. This is the method that professional pool companies use to adjust the water. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.