pH & Total Alkalinity

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Purple Water

by madonna » Sun 23 Sep, 2012 19:36

All the hoses and plastic inside my (on top the ground) pool are purple. We have had a problem all summer with brown stains and the not being able to...

0 Replies

635 Views

Last post by madonna
Sun 23 Sep, 2012 19:36
Unable to lower pH and total alkalinity

by garbz123 » Sun 02 Sep, 2012 22:25

First post

I have a 40 x 20 gunite pool about 35,000 gallons with mineral springs bioguard salt system. The pH has been around 9.0 with total alkalinity around...

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You aren't using nearly enough acid, and you should be using Muriatic Acid so that you don't keep increasing your sulfate levels which eventually...

1 Replies

1898 Views

Last post by chem geek
Mon 03 Sep, 2012 20:58
Sodium bisulfate and sodium chloride ionizer

by mimi966 » Thu 26 Jul, 2012 00:19

First post

Hi,
I'm lowering the pH using sodium bisulfate. Since I'm using a salt chlorination system, and the salt is sodium chloride, I was wondering if...

Last post

Thanks a lot! I needed this info.

2 Replies

4232 Views

Last post by mimi966
Thu 26 Jul, 2012 12:25
how to Lower Alkalinity Help Please

by cowladycc44 » Wed 01 Jul, 2009 07:39

First post

The alkalinity in my pool keeps going up. The Ph is 7.6 stays the same but the alkanity keeps going up we have added 2 gallons of acid we have well...

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With reasonable circulation, I'd say a half-hour is plenty of time, though in my own pool with good circulation I have no problem going in a few...

8 Replies

44989 Views

Last post by chem geek
Fri 13 Jul, 2012 20:51
Consistently high TA and low pH zero free chlorine
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by wheelyjon » Sat 25 Jun, 2011 07:06

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My pool is indoors and covered except when in use, TA is 250, pH 7.1 and I cannot get any free chlorine. Any efforts to lower TA make pH worse and...

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Are you sure you've got no chlorine? Maybe your chlorine level is so high that it is bleaching out your chlorine test. If you are using a DPD...
25 Replies

13971 Views

Last post by chem geek
Sun 08 Jul, 2012 02:10
Swimming Pool Misery

by Cabana » Mon 11 Jun, 2012 10:52

First post

Hi all, I'm new to the forum, so hello to everyone and thanks in advance for any help. I finally broke down and joined a forum after struggling with...

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Today is a good case in point. I added the muriatic acid yesterday. So, I did a reading just now. I apparently added plenty of acid as it brought the...

1 Replies

1891 Views

Last post by Cabana
Tue 12 Jun, 2012 08:51
TA perfect Ph to low

by calumet456 » Sun 10 Jun, 2012 10:55

help need to increase Ph w/out messing up the TA. Been a problem for over a month on going cycle. Get one in range the other is to high and vise...

0 Replies

816 Views

Last post by calumet456
Sun 10 Jun, 2012 10:55
TA perfect Ph too high

by crazy SA » Sun 10 Jun, 2012 10:50

My Ph is reading 0.0 now but my TA is reading 90 and cl is 4.7.... I have dumped so much in to bring up the ph, just when it's perfect TA is off the...

0 Replies

884 Views

Last post by crazy SA
Sun 10 Jun, 2012 10:50
Low Ph and High Ta

by csever82 » Wed 06 Jun, 2012 14:00

First post

This is my first post here, so please bear with me. Under the guidance of a licensed pool operator, I take care of the in-ground pool for the...

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Please tell me that you didn't really use "about 10 lbs. of cyanuric acid to lower the TA". You use Muriatic Acid, which is a liquid so...

1 Replies

1578 Views

Last post by chem geek
Wed 06 Jun, 2012 19:37
Total Alkalinity question

by Zyriak » Wed 02 May, 2012 02:03

First post

I just have a quick question that's been bothering me a couple of days now.

Have i understood it right that the TOTAL alkalinity should be somewhere...

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My Alk and PH are low, and I have no chlorine showing up on strips or test kit. I have added stabilizer and that didn't help... pool place said I...

6 Replies

5054 Views

Last post by Dproctor
Sun 20 May, 2012 19:35
Purple ph test sample.
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by Moose » Wed 14 May, 2008 12:16

First post

New SPA owner.

I have a K-2005 Taylor test kit. When testing my ph level, I fill my comparator tube with 44 ml of test water and add 5 drops of...

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The poster is reporting a TA of 90 ppm. 30 drops of acid demand to get in the readable pH range would be equivalent to an alkalinity drop of about...
18 Replies

44846 Views

Last post by Allen G Myerson
Sun 08 Jan, 2012 21:36
Diffusing CO2 to control PH
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by jwdavis » Wed 19 Mar, 2008 19:26

First post

Interested if anyone has any experience with using CO2 to control pH and what potential issues that may arise with TA, etc...

Thanks,

Jeff

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The key is to use c02 with a mixer to add some muriatic acid: Balance the two: If the TA gets to high simply turn off the c02 and use acid: This...
25 Replies

27939 Views

Last post by johns fountains
Wed 14 Dec, 2011 03:07
Testing for TA with Thermal Pool Cover

by Denniswiseman » Sat 19 Nov, 2011 08:24

First post

How long should the thermal pool cover be off a pool before testing for TA
I have had a result of 120-ppm with the pool cover just taken off and...

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Thanks for that, it has certainly cleared up a few questions regarding this issue

2 Replies

1309 Views

Last post by Denniswiseman
Sat 19 Nov, 2011 15:14
High Ph and Low Ta

by jj in Dallas » Tue 20 Sep, 2011 19:23

First post

It doesn't make sense to me, but my ph is between 7.6 - 7.8 and my TA is 40 ppm.
Total hardness is 240
What do I do to get my TA up without...

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If the pH tends to rise, then just lower the pH with some acid and leave the TA where it is unless it's very low such as 50 ppm or lower. If it's...

3 Replies

2103 Views

Last post by chem geek
Sat 12 Nov, 2011 05:10
Sodium Bicarbonate by mistake

by GSP » Fri 04 Nov, 2011 06:53

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Hi:) In trying to lower the TA I mistakenly added Sodium Bicarbonate instead of Bisulphate......what can I expect to find in the morning and what can...

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You can expect to find your TA higher. If other parameters such as pH and CH are also high, then you might see some scaling (lowering the pH should...

1 Replies

1181 Views

Last post by chem geek
Fri 04 Nov, 2011 22:32
Should I have to keep adding sodium bicarb?

by minuteman » Fri 04 Nov, 2011 08:56

First post

If my pool is properly balanced between Cl and pH (automated system, I think it's slightly out of calibration) should I have to keep adding sodium...

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The Alkalinity Up product from the pool store is sodium bicarbonate and is identical to Arm & Hammer Baking Soda you can get in a grocery store....

1 Replies

1280 Views

Last post by chem geek
Fri 04 Nov, 2011 22:29
What to aerate with?
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by Henry_R » Mon 15 Aug, 2011 01:10

First post

Ok, I've tried to use the search function for this but it's not helping or I'm not asking the right question, GIGO I guess.

What do you use to...

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It's not so much of an upper limit as a slowing down of outgassing as the TA level gets lower or the pH gets higher. This is shown in this chart . If...
23 Replies

19304 Views

Last post by chem geek
Mon 24 Oct, 2011 12:53
PH level before winterclosing

by larsemann » Sun 09 Oct, 2011 08:15

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Hi! I am about to close the pool for the winter. The pool will be closed for 5-6 months. The pH level is now 6.4. I wonder if I need to adjust it to...

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You do want your pH to be up higher in order to avoid metal corrosion. For your pH to be so low, it sounds like you may be using Trichor pucks/tabs...

1 Replies

994 Views

Last post by chem geek
Sun 09 Oct, 2011 12:52
Ph Probe Problem

by Sels » Sun 26 Jun, 2011 04:25

First post

Hi
I have an in ground pool with a Poolsquad salt system. Everything has worked great until this week. The low PH alarm was displayed on the...

Last post

What you describe is also happening in my poolroom, except that I can't test for as low a pH value as you
and I use a Monarch ESC 24 Promatic...

2 Replies

2403 Views

Last post by MichaelHeindorff
Mon 26 Sep, 2011 22:58
High Alkine, nothing lowers it, pH is fine! Help!

by lsheridan » Tue 28 Jun, 2011 15:46

First post

Our pool alkalinity level is at least 240 (per the test strip) and it stays there no matter what I do. I've added about 8 lbs of reducer over time,...

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what u can do is work out how much acid you need using a test kit to adjust the T/A ,top up the pool first then add acid in deep end diluted adding...

5 Replies

5093 Views

Last post by chem geek
Fri 16 Sep, 2011 02:00

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