pH & Total Alkalinity

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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

1061 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

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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

1162 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

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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

16151 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

859 Views

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

by Sels » Sun 26 Jun, 2011 04:25

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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...

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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

2156 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

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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

4750 Views

Last post by chem geek
Fri 16 Sep, 2011 02:00
TA test - record fully pink/red or just partially pink/red?

by Henry_R » Sun 28 Aug, 2011 10:00

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When doing the Total Alkalinity test are you supposed to record the amount when the color first goes a little pink/red or when it turns fully...

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It's technically the last drop that produces a color change. If you add another drop and don't see a change, then don't count that last drop. If you...

2 Replies

1499 Views

Last post by Henry_R
Fri 02 Sep, 2011 08:31
PH reduction

by mikyengel » Mon 15 Aug, 2011 06:06

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In order to reduce the PH from 7.6 to 7.2 I would like to know
what is the quantity (by grams/kilograms) of Sodium Bisulphate I need to add to a...

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You can use The Pool Calculator for an approximate calculation for this. It is approximate because the answer depends on the starting and ending pH...

1 Replies

1235 Views

Last post by chem geek
Mon 15 Aug, 2011 14:09
Levels out of wack

by outback99 » Sat 16 Jul, 2011 11:44

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After 3-4 days of thunderstorms, my saltwater pool (above ground) is cloudy. I tested with intex teststrips, the manufacturer of the pool. The...

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Test strips are close to useless. It is impossible for your water to have 0 TA and a pH of 8.0. A true TA of 0 would have a pH of 4.5 or below. You...

2 Replies

1138 Views

Last post by chem geek
Mon 15 Aug, 2011 01:58
High PH and high chlorine

by goldie_4213 » Fri 05 Aug, 2011 03:38

Hi all,I really need some help. I have just started back at my swim school after our 8 wk winter break. My pool is maintained (question mark here) by...

0 Replies

1021 Views

Last post by goldie_4213
Fri 05 Aug, 2011 03:38
Help At Wits End!

by versley » Mon 27 Jun, 2011 13:34

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I am at wits end with our pool and every time I go to the pool store their recommendations make it worse. It is so bad now they have no answers. I...

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For the time being lower your PH to 7.5-7.6. It will hold you of plaster problems for now.

8 Replies

5710 Views

Last post by czechmate
Fri 22 Jul, 2011 15:16
Should I "leave well enough alone"?

by neville » Wed 20 Jul, 2011 15:30

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Here's the stats first:

Victoria BC Canada - pool temp kept around 84F with heat pump - 74,000 litre inground pool - gunite/marcite - 30 years old -...

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I don't know if a painted pool will require the water to be saturated with calcium carbonate. In theory, if the paint were completely protecting the...

3 Replies

1592 Views

Last post by chem geek
Thu 21 Jul, 2011 11:56
How do I raise my low PH and alkalinity levels
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by cheri » Tue 14 Jun, 2005 21:04

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We have a 27 ft. in diameter above ground pool that has been opened this year for about 3 weeks. The chlorine level is fine, but I assume the recent...

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The use of Trichlor tablets/pucks is very acidic and even the use of Dichlor powder is acidic when accounting for chlorine usage/consumption. So it...
11 Replies

27207 Views

Last post by chem geek
Wed 06 Jul, 2011 03:05
How bad is high pH and Alk in a plastic pool?

by marietta » Sun 19 Jun, 2011 14:27

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How important is it to get / keep the pH and alkalinity down? We've had our pool (15 x 3.5 above ground walmart with the skimmer/pump on the side -...

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The best test kit to get is either the Taylor K-2006 or the TFTestkits TF-100 with the latter kit having a much greater volume of reagents you use...

3 Replies

3278 Views

Last post by chem geek
Wed 22 Jun, 2011 21:03
Orange pool water

by grandkids pool » Wed 22 Jun, 2011 19:10

We set up our above ground vinyl pool today and added the shock treatment. Within two hours the water was orange - almost rusty looking. According to...

0 Replies

848 Views

Last post by grandkids pool
Wed 22 Jun, 2011 19:10
Help?

by zavala8 » Wed 15 Jun, 2011 14:10

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I have been trying to clear up a milky looking pool for days now. I have been using the HTH 6 way test kit.My pool wont keep a chlorine level.
I went...

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Ordinarily the testing equipment the pool outlet uses is more sophisticated and more accurate than take home kits... BUT... I suggest you take...

1 Replies

569 Views

Last post by RJ251
Sat 18 Jun, 2011 19:27
Newbie, pls help- High Total Alk and low pH !

by Philpj » Mon 13 Jun, 2011 18:01

Hi, Pls help. I am a new pool owner. I got a gift of a vinyl round pool from my daughter and am having trouble getting the chemical levels right. I...

0 Replies

780 Views

Last post by Philpj
Mon 13 Jun, 2011 18:01
High Alkalinity, can't keep stable
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by bnairb » Thu 01 Jul, 2010 08:30

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Morning all.

Sorry this might seem so long, but I've been battling alkalinity for 3 months and it's driving me insane. My local pool stores aren't...

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If you own a spa pool or hot tub, it is important to understand that it requires a certain amount of owner maintenance to ensure it operates properly...
10 Replies

11463 Views

Last post by poolheating
Tue 07 Jun, 2011 18:58
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

945 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

First post

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

5957 Views

Last post by chem geek
Tue 17 May, 2011 12:36

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