Pool Ph

Reply

  #1  
Old 04-21-13, 06:26 PM
Member
Thread Starter
Join Date: Apr 2013
Location: USA
Posts: 4
Post Pool Ph

My pool Ph level is very high above 8.0, I first added Ph minus and it didn't do anything, so I read that I should add some muriatic acid, I added one gallen of muriatic acid waited about 6 hours and tested it, and tested it and it did not change at all, I dont want to add another gallon because the pool isn't more than 17,000 gallons. The chlorine and bromine levels are normal. Does anyone know what to do next?
 
Sponsored Links
  #2  
Old 04-21-13, 08:49 PM
Member
Thread Starter
Join Date: Apr 2013
Location: USA
Posts: 4
A quick side-note: I just measured the alkalinity and it was 190 ppm.
 
  #3  
Old 04-22-13, 05:12 AM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,554
I'm a little surprised you didn't get at least a little reduction after 6 hours, but it may take longer to see a drop.

What testing method are you using and if it's DIY are the materials current (not overage/expired)?
 
  #4  
Old 04-22-13, 06:27 AM
Member
Join Date: Apr 2013
Location: USA
Posts: 5
How are you testing? Muriatic will definitely bring your pH down so it is just a matter of adding enough. However, since one gallon didn't move your pool, I would confirm the results of your test before adding anymore.

A gallon of muriatic (31.45%) should have dropped your pH by a ton so I really suspect your test is invalid or your pH was absolutely astronomical (above 10)
 
  #5  
Old 04-22-13, 12:36 PM
Member
Thread Starter
Join Date: Apr 2013
Location: USA
Posts: 4
I just bought a new testing kit from home depot, it appeared to test the chlorine correctly,I followed all the directions. I also added half a gallon later that night and checked the Ph in the morning and there was no change at all...
 
  #6  
Old 04-22-13, 04:34 PM
Member
Thread Starter
Join Date: Apr 2013
Location: USA
Posts: 4
also the muriatic acid is 14.5% hydrogen chloride
 
  #7  
Old 04-22-13, 04:42 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 44,364
also the muriatic acid is 14.5% hydrogen chloride
That is a very low concentration of acid. Sounds like a big orange purchase. You needed to use the 31.4 % hydrogen chloride.

What you added was mostly water. Also.....when adding the acid..... you should either pour it in the pool VERY slowly or predilute it in water first.

Do not let anyone swim in the pool with acid recently added.
 
  #8  
Old 04-23-13, 12:06 PM
Member
Join Date: Mar 2008
Posts: 9
Just a suggestion but take a water sample to your local pool store to have tested they usually will tell you exactly what steps to take at no charge. A gallon of muatic acid in a 17,000 gallon pool is quite a bit even if it is only 14.5
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'