pH & Total Alkalinity

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How much Dry Acid (Sodium Bisulphate)
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by Denniswiseman » Sat 08 Oct, 2011 13:14

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I have been following the Dry Acid and Aeration protocol in this thread

My TA was around 180 and I have been adding 1 kilo (2.2 ibs) a time to...

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Dear sir,it was a wrong purchase order,becouse im using sodium bisulphate,but the delivery was sodium metabisulphite.my question is ,can i use it in...
15 Replies

20550 Views

Last post by pastorestong
Wed 29 May, 2013 05:06
How to test for TA

by diane_17 » Mon 06 May, 2013 14:57

I am using HydroPro delux pool test kit. I don't understand hot to measure the TA. It tells me that if I use Trichlor Tablets (I am using Trichlor...

0 Replies

640 Views

Last post by diane_17
Mon 06 May, 2013 14:57
Muriatic acid versus dry acid to lower alkalinity

by Riopaloma » Thu 25 Apr, 2013 14:59

First post

I have a 15,000 gallon fiberglass pool that I just finished painting with dura seal epoxy paint. It looks great and as new again. I filled the pool...

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If you are concerned about it, you could dilute it down further by using more buckets

5 Replies

10050 Views

Last post by Denniswiseman
Sat 27 Apr, 2013 04:20
PH normal, TA always high

by Adamant » Tue 23 Apr, 2013 04:06

First post

Hi All,

Just wondering if anyone can advise, or shed some light on if I need to worry or not!

I have a small 250 gallon hot tub which I tend to...

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Yes, with the pH on the high side and the TA high, you are risking calcium carbonate scaling, especially in the heat exchanger. The calcite...

1 Replies

960 Views

Last post by chem geek
Tue 23 Apr, 2013 20:27
Bicarbonate of soda

by pajacat » Wed 06 Feb, 2013 05:21

Is it right that buffer can only be added at a rate of 1kg per 50,000L every 4 days. If so, why, and what will happen if it is added much quicker.

0 Replies

1273 Views

Last post by pajacat
Wed 06 Feb, 2013 05:21
Alkalinity above 500 ppm and pH 8.4

by njadeja » Fri 01 Jun, 2012 03:41

First post

I have pool above 100K gallon. My Alkalinity is above 500 and pH is 8.4, Calcilum hardness is 60 ppm. I am trying to add continuous load of HCL as...

Last post

Thank you

6 Replies

4950 Views

Last post by SgtBilko
Sun 30 Dec, 2012 04:29
Alkalinity Low and pH High a never ending story?

by fets » Sun 26 Jun, 2011 01:51

First post

Hello,
i'm trying to rise the alkalinity (today reading Low) in my pool with Sodium Bicarbonate 100%.
when i do so, my pH go's up to, to 7.64, then i...

Last post

Remember when balancing your pool always alkalinity first, ph second and cl2 last.....At first glance your ph at 7.64 is almost perfect...

1 Replies

2276 Views

Last post by Nicolavalley
Sun 18 Nov, 2012 22:14
What is my ideal TA?

by Mangoman1 » Mon 13 Aug, 2012 20:56

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My new house has a 38,000 gallon salt water pool. This is my first pool and I can't quite lower my Ph from 8.6 no matter how much acid I use. My...

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The optimum TA depends on the amount of aeration in the pool as well as if a saltwater chlorine generator is used. With an SWG or when using a...

5 Replies

3208 Views

Last post by chem geek
Tue 02 Oct, 2012 00:48
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

544 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

1678 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

3817 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

42925 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

13420 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...

Last post

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

1783 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

726 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

794 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

1447 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

4654 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

39187 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

Last post

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

26567 Views

Last post by johns fountains
Wed 14 Dec, 2011 03:07

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