How to lower ph

[Jim and Phyllis Hurley]

I just checked the pond chem stats.

GH 75
KH 300
ph 9
Nitrates 0

Looks to me that the ph needs to come down and that that may be contributing
to the problems of the WH.

How do we lower the ph effectively in a cement pond? It is in fact higher
than usual, generally, we have been in the 8 range.

Speak, O pond muses.



--
____________________________________________
See our pond at: home.bellsouth.net\p\pwp-jameshurley
Ask me about Jog-A-Thon fundraiser (clears $120+ per child) at: jogathon.net

[Go Fig]

In article >, Hal
> wrote:

> On Mon, 26 Jul 2004 06:27:45 -0500, "Jim and Phyllis Hurley"
> > wrote:
>
> >GH 75
> >KH 300
> >ph 9
> >Nitrates 0
> >
> >Looks to me that the ph needs to come down and that that may be contributing
> >to the problems of the WH.
> >
> >How do we lower the ph effectively in a cement pond? It is in fact higher
> >than usual, generally, we have been in the 8 range.
>
> pH Down - -
> Muriatic acid (31% HCl) a doses of approximately 2 fluid ounces per
> 1000 gallons per day until the pH is about 8.5. I would not lower the
> pH below 8.5 without also testing KH (alkalinity).

It will come down, but go right back up w/out acid.

At KH of 300 and knowing its a cement pond... this pH ain't going
anywhere unless its set up to a controller and a dosing pump.

You could also paint it with a 2 part epoxy paint.

Withstanding that, I leave it alone.


jay
Mon Jul 26, 2004




> Acid directly
> consumes KH. If KH is lowered below ~100 mg/l, pH will become
> unstable, and the pH measurements become meaningless.
>
> Regards, Hal
> http://members.cox.net/hrclark1/Index.html

[RichToyBox]

I am stepping outside of my area of expertise, but the manufacture of sodium
bicarb is by taking sodium hydroxide, (soda ash) and bubbling CO2 through it
so that the sodium + OH + CO2 yields NaHCO3. The concrete gives off calcium
hydroxide and the hydroxide, if pure has a pH of 14, though as calcium
hydroxide saturated it has a pH of around 12. I am guessing an excess of
hydroxide is causing the pH to be high, and by bubbling CO2 through the pond
the hydroxide would be changed to bicarbonates. Of course air stones would
bubble CO2 along with the other components of air. Underwater plants
produce CO2 at night, and in combination with air stones may help to lower
the pH.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html
"Jim and Phyllis Hurley" > wrote in message
...
> I just checked the pond chem stats.
>
> GH 75
> KH 300
> ph 9
> Nitrates 0
>
> Looks to me that the ph needs to come down and that that may be
contributing
> to the problems of the WH.
>
> How do we lower the ph effectively in a cement pond? It is in fact higher
> than usual, generally, we have been in the 8 range.
>
> Speak, O pond muses.
>
>
>
> --
> ____________________________________________
> See our pond at: home.bellsouth.net\p\pwp-jameshurley
> Ask me about Jog-A-Thon fundraiser (clears $120+ per child) at:
jogathon.net
>
>

[RichToyBox]

I am stepping outside of my area of expertise, but the manufacture of sodium
bicarb is by taking sodium hydroxide, (soda ash) and bubbling CO2 through it
so that the sodium + OH + CO2 yields NaHCO3. The concrete gives off calcium
hydroxide and the hydroxide, if pure has a pH of 14, though as calcium
hydroxide saturated it has a pH of around 12. I am guessing an excess of
hydroxide is causing the pH to be high, and by bubbling CO2 through the pond
the hydroxide would be changed to bicarbonates. Of course air stones would
bubble CO2 along with the other components of air. Underwater plants
produce CO2 at night, and in combination with air stones may help to lower
the pH.
--
RichToyBox

"Jim and Phyllis Hurley" > wrote in message
...
> I just checked the pond chem stats.
>
> GH 75
> KH 300
> ph 9
> Nitrates 0
>
> Looks to me that the ph needs to come down and that that may be
contributing
> to the problems of the WH.
>
> How do we lower the ph effectively in a cement pond? It is in fact higher
> than usual, generally, we have been in the 8 range.
>
> Speak, O pond muses.
>
>
>
> --
> ____________________________________________
> See our pond at: home.bellsouth.net\p\pwp-jameshurley
> Ask me about Jog-A-Thon fundraiser (clears $120+ per child) at:
jogathon.net
>
>

[Jim and Phyllis Hurley]

Hmmmmm......

If the cement buffers it at its present level....and has been doing that for
several years (since it was made)....then the ph will not be why the plants
are yellowing this year! Less pressure on forcing the change.

I will add some tomato fertilizer and see what that does.

Jim

--
____________________________________________
See our pond at: home.bellsouth.net\p\pwp-jameshurley
Ask me about Jog-A-Thon fundraiser (clears $120+ per child) at: jogathon.net

"Go Fig" > wrote in message
...
> In article >, Hal
> > wrote:
>
> > On Mon, 26 Jul 2004 06:27:45 -0500, "Jim and Phyllis Hurley"
> > > wrote:
> >
> > >GH 75
> > >KH 300
> > >ph 9
> > >Nitrates 0
> > >
> > >Looks to me that the ph needs to come down and that that may be
contributing
> > >to the problems of the WH.
> > >
> > >How do we lower the ph effectively in a cement pond? It is in fact
higher
> > >than usual, generally, we have been in the 8 range.
> >
> > pH Down - -
> > Muriatic acid (31% HCl) a doses of approximately 2 fluid ounces per
> > 1000 gallons per day until the pH is about 8.5. I would not lower the
> > pH below 8.5 without also testing KH (alkalinity).
>
> It will come down, but go right back up w/out acid.
>
> At KH of 300 and knowing its a cement pond... this pH ain't going
> anywhere unless its set up to a controller and a dosing pump.
>
> You could also paint it with a 2 part epoxy paint.
>
> Withstanding that, I leave it alone.
>
>
> jay
> Mon Jul 26, 2004
>
>
>
>
> > Acid directly
> > consumes KH. If KH is lowered below ~100 mg/l, pH will become
> > unstable, and the pH measurements become meaningless.
> >
> > Regards, Hal
> > http://members.cox.net/hrclark1/Index.html

[~ jan JJsPond.us]

This isn't a new pond, but an established one, with critters, is that
correct?

If so, imo, how old is your test kit? Do you do regular water changes?
What's the pH of the water you're adding?

My lily pond went up way high, I tried acid, over & over, kept going back
up. Tried 4 lbs of baking soda, nothing, still 9.2. Was told to do water
changes more often since the pH of my tap water is only 7.8. Four water
changes over about 8 days and the pH was back to 8.0. The most amazing
thing? It's held ever since, I'm clueless as to why, but all the plants are
doing great now. ~ jan




>On Mon, 26 Jul 2004 06:27:45 -0500, "Jim and Phyllis Hurley" > wrote:

>I just checked the pond chem stats.
>
>GH 75
>KH 300
>ph 9
>Nitrates 0
>
>Looks to me that the ph needs to come down and that that may be contributing
>to the problems of the WH.
>
>How do we lower the ph effectively in a cement pond? It is in fact higher
>than usual, generally, we have been in the 8 range.
>
>Speak, O pond muses.

(Do you know where your water quality is?)

[Jim and Phyllis Hurley]

i'll try the change process.

Jim

--
____________________________________________
See our pond at: home.bellsouth.net\p\pwp-jameshurley
Ask me about Jog-A-Thon fundraiser (clears $120+ per child) at: jogathon.net

"~ jan JJsPond.us" > wrote in message
...
> This isn't a new pond, but an established one, with critters, is that
> correct?
>
> If so, imo, how old is your test kit? Do you do regular water changes?
> What's the pH of the water you're adding?
>
> My lily pond went up way high, I tried acid, over & over, kept going back
> up. Tried 4 lbs of baking soda, nothing, still 9.2. Was told to do water
> changes more often since the pH of my tap water is only 7.8. Four water
> changes over about 8 days and the pH was back to 8.0. The most amazing
> thing? It's held ever since, I'm clueless as to why, but all the plants
are
> doing great now. ~ jan
>
>
>
>
> >On Mon, 26 Jul 2004 06:27:45 -0500, "Jim and Phyllis Hurley"
> wrote:
>
> >I just checked the pond chem stats.
> >
> >GH 75
> >KH 300
> >ph 9
> >Nitrates 0
> >
> >Looks to me that the ph needs to come down and that that may be
contributing
> >to the problems of the WH.
> >
> >How do we lower the ph effectively in a cement pond? It is in fact
higher
> >than usual, generally, we have been in the 8 range.
> >
> >Speak, O pond muses.
>
> (Do you know where your water quality is?)