How do I keep my pH stable?

Problems relating to pH and total alkalinity.
Increase ph, increase TA. Reduce pH, reduce TA.
pH chemistry advice and techniques for the pool.
czechmate
Swimming Pool Superstar
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Joined: Sat 16 May, 2009 09:20
My Pool: 16 x 32 gunite21000 gal., Diamond Brite Blue, Swimquip XL pump, DE36
Location: Texas

How do I keep my pH stable?

Postby czechmate » Sat 01 Aug, 2009 08:07

Richard,

Thanks for the reply. T
The reason I have mentioned using Borax to raise a TA was that a I had a TA 90 and could use raising the borate level due to dilution by backwash.
My real question was about benefit of adding salt in the pool without an SWG.
I have a travertine tile coping, so the splashing would probably have longterm adverse impact.
I just wanted to know, if the salt content helps the water chemistry maintenance or maybe protect the water from a freeze in a case of power failure.

Thanks,

Ivan


chem geek
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How do I keep my pH stable?

Postby chem geek » Sat 01 Aug, 2009 16:24

The salt doesn't change the water chemistry maintenance except that is slightly lowers the saturation index so needs some combination of a higher pH, TA or CH to compensate. The salt level is way too low to affect freezing of the water by any amount that matters. It really would just be there because you thought it felt better or was closer to the salinity of the eyes.
czechmate
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 401
Joined: Sat 16 May, 2009 09:20
My Pool: 16 x 32 gunite21000 gal., Diamond Brite Blue, Swimquip XL pump, DE36
Location: Texas

How do I keep my pH stable?

Postby czechmate » Sat 01 Aug, 2009 18:46

Thanks a bunch, Richard.
Ivan
ian76

How do I keep my pH stable?

Postby ian76 » Mon 21 Jun, 2010 01:38

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 - A very small tank i know =)
Water level - 0.5ft with 1 water filter pump.
10 tiger barb.
A plant attached to a 7cm drift wood.
Two had full of crushed coral.

Problem:
I had made 50% water change twice and the pH measured drop to 7 to 7.2
however after less then 2 hrs pH reading keep rising to the higher level of Alkaline - Twice.
Try to stable it by a few drop of pH down liquid it went to 6.8 but after an hour it goes back
to higher pH 7.8 I do not know what is my KH level as i don't have the KH measurement kits.
Should i remove or add any things i.e the plant or coral to bring it down?
(I know tiger barb will do well in more acidic water).

Fish behavior - They seems to be resting at the bottom most of the time or next to the water filter.



Regards:
iAN

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