Alternative reagent for Alk monitor, KH Director and prob others

voooooo · Mar 25, 2020

anyone using the .1N acid dumping the waste back into tank? if so, for how long, and any issues if any? thanks.

KenO · Apr 28, 2020

voooooo said:
anyone using the .1N acid dumping the waste back into tank? if so, for how long, and any issues if any? thanks.

I have been doing this for a month or so on my larger setup 600 gallons. No issues. I’ve been dumping the standard GHL acid back into my 60 gallon for at least 3 months. No issues pH has been rock solid.

Hersheyb · Apr 28, 2020

After finding this thread I also switch to the .1N acid and readings have been the same. Prior to the KHD i was using salifert alk test which is 8% higher than what my KHD reads, I simply adjust the KHD readings to 8% higher and it matches 100% now.

Yanos · Apr 30, 2020

Can someone post link for this reagent replacement please

KenO · Apr 30, 2020

Yanos said:
Can someone post link for this reagent replacement please

I bought this one from amazon

Cali9dub · May 5, 2020

Has anyone tried the Hanna .1N hydrochloric acid ?

Cali9dub · Jun 5, 2020

Guess not. Lol

lewis_e · Aug 5, 2020

Hi,
I'm going to switch my KH reagent for the 0.1 N HCl. For those that have done this, have you made a breather hole in the HCl container lid so that there is no vacuum created when the pump draws out reagent? Is a breather hole sufficient or should a non-return air valve be attached to the lid? Just concerned that I'll have HCl evaporating off in my sump

KenO · Aug 9, 2020

lewis_e said:
Hi,
I'm going to switch my KH reagent for the 0.1 N HCl. For those that have done this, have you made a breather hole in the HCl container lid so that there is no vacuum created when the pump draws out reagent? Is a breather hole sufficient or should a non-return air valve be attached to the lid? Just concerned that I'll have HCl evaporating off in my sump

I just made the hole I drilled through the cap for the draw tubing large enough to allow air to enter.

A3LXK · Apr 8, 2021

@dragon99,

Have you went back to .1N HCL or did you still use the KHD reagent?

CEReefer · Apr 8, 2021

A3LXK said:
@dragon99,

Have you went back to .1N HCL or did you still use the KHD reagent?

Used 0.1N HCL for ever.. works great

Waynerock · Apr 8, 2021

smartwater101 said:
This is essentially what you're using, yes? (The 1L you linked isn't in stock at the moment.)

Also, do you send the waste back into the tank? Sounds like many people do (I do with my Alkatronic) From what I understand, only thing to worry about (if anything really) would be pH fluctuations....

Dude I love the signature! Still to this day people are confusing hosting/host. I have even seen online and LFS's say it wrong and it makes me crazy! It is so frustrating and I cant look away, that is one of those things! AHHHHH
Sorry for the sidetrack now if someone can bootleg the Hanna ALK reagent I will be happy

KenO · Apr 8, 2021

I've been using this acid. Works great.

LabChem LC256804 Sulfuric Acid, 0.1N (0.05M), 4 L Volume

CEReefer · Apr 8, 2021

KenO said:
I've been using this acid. Works great.

LabChem LC256804 Sulfuric Acid, 0.1N (0.05M), 4 L Volume

Uhm... sulfuric acid seems pretty dangerous in a reef tank.. everyone else’s using HCL

KenO · Apr 8, 2021

CEReefer said:
Uhm... sulfuric acid seems pretty dangerous in a reef tank.. everyone else’s using HCL

Any acid if not handled correctly can be dangerous.

CEReefer · Apr 8, 2021

KenO said:
Any acid if not handled correctly can be dangerous.

100% but I wouldn’t put sulfuric acid in my tank.. HCL is used in experimental settings with living beings

dragon99 · Apr 8, 2021

A3LXK said:
@dragon99,

Have you went back to .1N HCL or did you still use the KHD reagent?

Back to .1N acid from Amazon. I went ahead and got a 4L bottle this last time.

Make sure you check the label when you receive it. I spent a couple weeks trying to figure out what was wrong with my KHD before I realized Amazon had shipped me sodium hydroxide .1N instead of hydrochloric acid.

A3LXK · Apr 8, 2021

dragon99 said:
Back to .1N acid from Amazon. I went ahead and got a 4L bottle this last time.

Make sure you check the label when you receive it. I spent a couple weeks trying to figure out what was wrong with my KHD before I realized Amazon had shipped me sodium hydroxide .1N instead of hydrochloric acid.

Thanx, i don't order at amazon. There is a compagny here in the Netherlands that sell all kind of chemicals. The got .1N HCL for about $ 3.7 per liter.