Sodium Hydroxide in Planted Tank? - Page 4 - The Planted Tank Forum
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post #46 of 50 (permalink) Old 02-14-2019, 07:39 PM
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Originally Posted by ChrisX View Post
There is nothing to apologize for. No one did anything wrong. Everyone is trying to help. But the information has been conflicting and the bottom line, for me, is that if I'm going to have the kind of success with this that I want
A lot of time forums and forum members act like armchair quarterbacks and give advice freely without strong basis. While I find that the quality of the posts in this forum is far better than most it is still prone to the same issue. Advice given on missing/inaccurate/incomplete information is often prone to error and contradictory. In the aquarium hobby we are often dealing with a lot of unknowns, therefore it is prudent get as much information about your tank as possible.

At this point with the money and time you have invested you really should get a TDS meter(~$20) and check your total TDS both in your tank and your tap water. It doesn't matter if its even +/- 20ppm if the current theory being floated around is accurate(I have my doubts) you will see a high TDS. If you don't see that than you know that is NOT that problem.
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post #47 of 50 (permalink) Old 02-15-2019, 12:18 AM
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@ChrisX your area was 4.5-5.5 sodium in ppm.

My area of county states 2-10ppm.
Recently measured in my area was 2.6 from report.

County data was from 2017 report found here.
https://www.google.com/url?sa=t&sour...pjn0Ca0WA574-K
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post #48 of 50 (permalink) Old 03-19-2019, 02:59 AM
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@ChrisX because of your thoughts regarding NaOH I've reached out to other resources.
It just so happens I need them for other issues.

I have a specialist in house this week regarding a water quality issue and I've brought up the introduction of sodium hydroxide only to understand the effects of dosing this compound to city water supply.

Another issue is also poly-phosphates which causes binding of Calcium in tap water that could also be hampered by sodium content.

If I learn something of value I will surely post it here!
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post #49 of 50 (permalink) Old 03-19-2019, 03:25 AM
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@ChrisX because of your thoughts regarding NaOH I've reached out to other resources.
It just so happens I need them for other issues.

I have a specialist in house this week regarding a water quality issue and I've brought up the introduction of sodium hydroxide only to understand the effects of dosing this compound to city water supply.

Another issue is also poly-phosphates which causes binding of Calcium in tap water that could also be hampered by sodium content.

If I learn something of value I will surely post it here!
Sounds great, I'd ask them what is causing the pH increase(to 8.0?) and if there are other basic buffers in the water (silicates, borates, phosphates etc).
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post #50 of 50 (permalink) Old 03-21-2019, 02:40 AM
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@ChrisX
If tap contains any phosphate we can be sure Ortho & Poly phosphates are being dosed from municipality.
This will bind bicarbonates & carbonates and will not break down to GH unless pH levels are over 9.0
Definitely not an issue, one would just see PO4 around 1ppm from tap.
Is this PO4 available for plant uptake, I can't say.

Since mostly surface water is being used the options are calcium hydroxide and or sodium hydroxide to raise pH for the EPA requirement for piping degradation.
Municipality pH targets are running @ 7.5pH and the lime is used as the norm.
If NaOH was used the sodium content would be minimal and not affect plants.

This is all I have from the visit.
Would need to re-read this thread to comment further.
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