how much borax

waterhog

Active member
May 24, 2007
31
SOUTHREN VIRGINIA
last evening i found a thread from chemgeek i believe and it told how to figure out how much borax to use per 1000 gals for the life of me i cant seem to find it again any suggestions?
 

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
12,083
San Rafael, CA USA
One box of 20 Mule Team Borax is 76 ounces weight (4.75 pounds) and raises the Borates level by 8.45 ppm in 10,000 gallons. This amount of Borax takes 47.5 fluid ounces of Muriatic Acid to maintain the pH (remember that Borax raises the pH).

Richard
 

waterhog

Active member
May 24, 2007
31
SOUTHREN VIRGINIA
:-D thanks alot for the quick response Richard now upon adding the borax how long should i wait to add the muriatic acid and at what time frame all at once or several hours in between ? also is it alright to swim anytime soon after the addition of the acid? what are the maintence doses on a 13,500 gal a/g?.have you ever heard of anyone using Vinegar with the bbb?
 
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waterhog

Active member
May 24, 2007
31
SOUTHREN VIRGINIA
iam trying to balance out my borates as i havent added any borax to my water as of yet to help prevent the loss of my liq cholrine,my cya is at 30 but i lose my cholrine alittle to fast seems to me.being concerned over the ph iam gonna use the muriatic acid to maintain it at proper level,its gonna be over a week before i can try any of this so i will let everybody know how it all works out ,iam new at all this and have much to learn,but i think iam in just the right site to do just that :-D
 

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
12,083
San Rafael, CA USA
Yes, if adding Borax to raise pH then you wouldn't add acid, but if adding them to increase Borates levels then you would add acid as well.

Different people do it differently, but you can just add one box of Borax, then add the acid associated with it right after, then alternate. Just don't mix them together outside the pool "raw". Adding them to the pool one after the other is no problem since they both mix into the pool water very, very quickly -- especially if you add them over a return with the pump running.
 

waterhog

Active member
May 24, 2007
31
SOUTHREN VIRGINIA
okay,i think ive finally got it,iam trying to build up my borates as of this time iam at "0"so ill shoot for 30-50 and add acid as your recommend ,so ill get me some test strips and go for it thanks, ill let you know how it all works out in alittle over a week when i get back home thanks again..
 
G

Guest

3/4 lb (12 oz) borax will raise the borate level of 1000 gallons 10 ppm and will need 3/4 cup (6 oz) of acid to compensate for the pH rise. Not exact but close enough. Add half the requird borax then half the acid right after. Then add the rest of the borax and the rest of the acid. Wait about 24 hours, check pH and adjust to 7.6 with either acid or borax.
 

TexasTwister

LifeTime Supporter
In The Industry
Feb 9, 2008
40
Richmond, Texas
Please check my math!

Hi,

Can someone check my math? This is a pool with no borates.

A 15,300 gallon pool will need 551 ounces (or 34.4375 pounds or 7.25 boxes) of 20 Mule Team Borax to get to 40 ppm. I will also need to add 344 ounces (or 2.69 gallons) of muriatic acid to compensate for the increase in pH.

Is this right?

Also, will this amount of muriatic acid lower my TA enough to get back to 70 ppm or do I need to lower the TA first, and then let the muriatic acid handle the pH?

Thanks.
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,880
Silver Spring, MD
For 15,300 gallons, to raise borates from 0 to 40 I get 721 oz or 9.5 boxes of Borax and 362 oz or 2 gallons 3 quarts and 1 cup of 31.25% muriatic acid. You can try out my Pool Calculator, see the link in my signature, for making this kind of calculation.

Using borax and acid together will have very little if any effect on the TA level. The borax will raise the TA and the acid will lower it back down by the same amount.
 

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
12,083
San Rafael, CA USA
To give you an idea of why Jason says Borates effectively don't affect the measured TA level, even 50 ppm Borates only raises the TA by about 5 ppm, all else equal. Borates are still a pH buffer, but have far more capacity (at pH 7.5) to buffer against rising pH than lowering pH and the TA test only measures the buffer capacity against lowering pH.
 

matj6876

LifeTime Supporter
Jul 28, 2007
105
DFW, TX
Hi waterhog & TexasTwister

I'm new to all this and just used Borax to add borates to my 15000 gal pool about 10 days ago. After seeking the wisdom of the TFP sages here
I used Jason's Pool Calculator to calculate the amounts of Borax & acid that I needed.
I added all of my Borax in one go (against advice) and then added all of the acid immediately after, with the pump running. I had no problems and ended up with what looks like, according to the test strips, just under 50ppm borates and no change in pH.

Good luck - you can do this stuff! :-D
 

duraleigh

Admin
Mod Squad
TFP Expert
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In The Industry
Apr 1, 2007
32,859
Sebring, Florida
Correctamundo!. The TF-100 does not have the test.

Waterbear is the practical guru on borates and will be along soon to recommend a test resource.
 
G

Guest

The easiest test for home use is the LaMotte borate test strips... the other borate test strips out there are oK but the LaMotte are MUCH easier to read!!!!!!!
 
G

Guest

This is, in fact, pretty much the same test as the Proteam titration test. Meq/l can be converted into ppm with that much trouble if you understand some basic chemistry. Once again I say that for home use the LaMotte Borate test strips are the easiest way to go for reults that are certainly accurate enough for borates!
Dave,
Ever consider these as an option or add on to the TF100 kit?
 

Nuvene

Well-known member
Jul 5, 2013
116
Gilbert, Az
;31377 said:
This is, in fact, pretty much the same test as the Proteam titration test. Meq/l can be converted into ppm with that much trouble if you understand some basic chemistry. Once again I say that for home use the LaMotte Borate test strips are the easiest way to go for reults that are certainly accurate enough for borates!
Dave,
Ever consider these as an option or add on to the TF100 kit?
The main reason that they aren't included is because they are an optional thing... the test kits are everything you NEED to maintain a pool...