pH & Total Alkalinity

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Alkilinty yellow

by hazellief » Sun 22 May, 2011 10:06

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testing alkilinty it only turns yellow still at 20 ppm when I test at 10ml it takes 4 drops x 25 is 100ppm but when i use 25ml it only turns yellow...

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If you are using a proper test kit, such as the Taylor K-2006 or the TFTestkits TF-100 , then the Total Alkalinity (TA) test goes from green to red....

1 Replies

961 Views

Last post by chem geek
Sun 22 May, 2011 13:40
Baquacil - High Alkalinity - High PH - Foamy water

by tribalben » Mon 16 May, 2011 18:17

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Hello all! I am fairly new to taking care of this pool, and in the past, only have experience with chlorine pools.

We are using the Baquacil CDX...

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It will take 2 gallons of full-strength Muriatic Acid (31.45% Hydrochloric Acid) in 25,000 gallons to lower the pH from 8.0 to 7.0 and this can be...

5 Replies

6004 Views

Last post by chem geek
Tue 17 May, 2011 12:36
PH and ALK low

by sherryinfl » Wed 14 Jul, 2010 13:57

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We just switched our pool to a salt system. I can not get the ph or the TA up. Both very low. On the strip the ph is so low it reads as bright...

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You can use The Pool Calculator to calculate approximate dosages. I'd add half of what is indicated and retest, then add more if needed. Please get...

4 Replies

4202 Views

Last post by chem geek
Mon 16 May, 2011 00:25
Bacteria Build Up While Treating w/Muriatic Acid

by Tanya Pool » Wed 07 Jul, 2010 10:09

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Hi there,
I am wondering if I should be concerned with bacteria growth while I am treating my pool w/ Muriatic Acid?

My small 1700+ gal. pool was...

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Was this sorted by any chance?

2 Replies

1796 Views

Last post by swimfit
Tue 05 Apr, 2011 03:23
PH rising, TA falling, CH down --what's going on?

by JPlunket » Sun 01 Nov, 2009 13:56

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I am mystified.

5000 gal, vinyl-lined, "Endless" pool, using plain Clorox to chlorinate, maintaining at about 6ppm (CYA is about 40).

pH...

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The 6 ppm FC with 40 ppm CYA is equivalent in active chlorine (hypochlorous acid) concentration to 0.14 ppm FC with no CYA so far lower than most...

5 Replies

3389 Views

Last post by chem geek
Sun 06 Mar, 2011 14:34
High Alkalinity/PH Plus black algae

by Keith1994 » Mon 30 Aug, 2010 15:34

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I'm helping a friend take care of a pool that has been giving her fits. She's got some spots of black algae that simply are not affected by shock or...

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You are right. If the suggested hasn't worked for you, and that which involves rigorous scrubbing, you perhaps will have to give it a treatment...

4 Replies

3008 Views

Last post by swimfit
Thu 24 Feb, 2011 06:00
low alkalinity

by poppii » Mon 29 Nov, 2010 23:44

First post

hi,

had my water tested and the alkalinity was 70, ph 7.4. i was told to add some bi-carb to increase the alkalinity, but my question is if I do...

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If your pH is stable, you don't need to raise the TA. 70 ppm is fine.
That may not be enough if your CYA is at 100.
Don't you need to subtract 1/3...

3 Replies

2513 Views

Last post by czechmate
Wed 23 Feb, 2011 07:54
really HIGH alkalinity for a long time....
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by johanss » Thu 23 Aug, 2007 14:16

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My alkalinity is 230 and has been for amost 2 months...my pool store

has told me to add dry acid 10lbs for my vol.12,600 gal. It has not

changed at...

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I was surfing the web for alkalinity and I found myself in this page. I recently acquired a house with a backyard pool and I know nothing in pool...
10 Replies

8293 Views

Last post by Leigh
Thu 02 Dec, 2010 23:09
Sulphuric acid as pool acid
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by Petra » Tue 24 Jan, 2006 21:24

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We have a chemical company trying to sell us sulphuric acid as pool acid instead of muriatic. Has anybody heard of this for public pools

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OK, I see what you are doing and it's correct; thank you for helping out and correcting me.

For the purposes of knowing the effect on measured TA...
18 Replies

33713 Views

Last post by chem geek
Fri 12 Nov, 2010 11:51
Can't get acid pump to lower pH level

by Rick Sass » Mon 15 Jun, 2009 07:02

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I installed a Stenner variable speed acid pump with a #1 pump tube that discharges a maximum of 5 GPD on a #10 pump setting (maximum). I'm diluting...

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5 gallons of 4:1 acid is more than a gallon of acid per day! That should drop your PH like a rock unless you have a huge pool.

What size is your...

3 Replies

2118 Views

Last post by mas985
Thu 02 Sep, 2010 17:48
High pH and green water
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by twinmomma » Mon 26 Jul, 2010 13:45

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I have also posted this on the Pool Algae forum.

Please help, I am VERY frustrated. We have been battling High Ph for several weeks and the level...

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Yippee - algae is gone. pH is low and holding. My water is now cloudy/milky. I added 2 lbs of shock and 2 clarifying tablets this morning. I'm not...
13 Replies

26066 Views

Last post by chem geek
Sat 14 Aug, 2010 15:22
New pool owner with questions regarding High TA and PH

by tammyinmo » Sun 25 Jul, 2010 17:24

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We have well water, hence, the High TA levels that are so high they are beyond the capability of the paper to tell us exactly what they are. The PH...

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I presume your concern is with the smell, fuming and burn potential of muratic acid.

Given that you are using a SWG I would not recommend anything...

1 Replies

2190 Views

Last post by lbridges
Sun 25 Jul, 2010 17:45
Did I add too much Muriatic acid to my pool water?

by iamcparsons » Sun 18 Jul, 2010 07:53

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Hello, after my 12'ft round by 36"deep pool (about 2000-2050 gallons?) Intex pool had been testing alkalinity out off the chart of my test strip...

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yes, I did. I was not sure if anyone would respond at all, so I felt compelled to try both places...it is very helpful that you responded, but I...

3 Replies

8654 Views

Last post by iamcparsons
Sun 18 Jul, 2010 15:42
Aeration Idea

by jjm » Thu 24 Jun, 2010 12:27

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I am aerating as a part of the TA reduction process described in this forum. I put a 20' 1/8" ID tube into the suction line of an Intex 1500GPH...

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Perhaps consider a floating fountain that attaches to a pool return.

I have never worked up the numbers, but I suspect the air surrounding the water...

3 Replies

2637 Views

Last post by lbridges
Sun 27 Jun, 2010 19:50
Trying to Add Chemicals for the First Time

by lln7262 » Mon 21 Jun, 2010 14:41

Hello!

I am trying to be sure that I am adding the proper chemicals to my new intex 15 foot X 4 foot deep swimming pool. I haven't added anything...

0 Replies

1057 Views

Last post by lln7262
Mon 21 Jun, 2010 14:41
How do I keep my pH stable?
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by Oregonmommy » Sat 25 Jul, 2009 21:30

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Chlor. 2-3
TA- 80
Ph- 6.8 -7.2 closer to 7.2
How do I keep my pH stable. I added some pH plus and got it at 7.4 but after a few days it dropped back...

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Hello everyone.
I'm very new in this..hope you guys can give me some advise here.
What i have as follows:
1ft (Length) x 0.5ft (w) x 1ft (H) tank -...
13 Replies

9788 Views

Last post by ian76
Mon 21 Jun, 2010 01:38
Drain the Pool

by gmebane » Mon 14 Jun, 2010 10:56

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Just wanted to get some advise on draining the pool. Our service tech has recommended that we drain our pool as the acidity of the water has gone off...

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Assuming it is too high CYA, I would drain at least to the level keeping 3 -3 1/2 ft on the bottom.
If you pool is in the sand, rock or a high ground...

2 Replies

1496 Views

Last post by czechmate
Mon 14 Jun, 2010 19:28
Cloudy water-YELLOW on the bottom of my gunite pool.

by areumad3 » Tue 18 May, 2010 07:21

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I have a gunite pool with a salt system,the level of chlorine is fine,ph a little high and the alkalinity perfect,I have a yellow colored residue on...

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Check the levels of your metals. If your iron is high you will get a yellowish/brownish stain, which you can remove. Do you have well water?

1 Replies

1719 Views

Last post by SteveM1800
Wed 26 May, 2010 13:19
Problems understanding test readings

by gardennorm » Wed 13 May, 2009 14:23

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Hi all
Im new to pool testing and maintenance and following a basic test i have the following results
PH Yellow ideal colour should be purple...

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Hi all
Im new to pool testing and maintenance and following a basic test i have the following results
PH Yellow ideal colour should be purple...

6 Replies

3926 Views

Last post by Paris
Tue 25 May, 2010 13:50
Automatic pH controllers
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by osmosis » Tue 19 Sep, 2006 00:47

First post

Hi

I would be really interested if someone can provide me with some feedback with regard to automated pH controllers, such as the Zodiaz pH Easy....

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I sale and make distribution of the Salt Master PH controllers and they work perfect. Never have a call back of any customer. You can contact me to...
14 Replies

10737 Views

Last post by intelipools
Sat 01 May, 2010 23:55

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