Alternative reagent for Alk monitor, KH Director and prob others

[KenO]

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

Been doing it for a year. No issues.

 

[dragon99]

@dragon99 ,

Am I right that we don't dillute the 0.1N HCL. Just straight on the doserpump?

KHD uses it straight from the bottle, no dilution needed.

 

[Sam816]

I am not located in the USA. This hcl 0.1m solution is available locally. Will this work?

 

[Breadman03]

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.

This is the confirmation I was looking for. Sodium hydroxide isn’t working for me, so I’m off to order some of the right stuff now.

 

[elcapitan1993]

Is anyone still using this for there KHD? I test 6 times a day and it’s getting spendy

 

[CEReefer]

Is anyone still using this for there KHD? I test 6 times a day and it’s getting spendy

Used it for 2+ years, still going strong

 

[elcapitan1993]

Used it for 2+ years, still going strong

Awesome!! I was just making sure it didn’t have any negative effect on any tubing inside or anything like that, I like my alk to be stable so testing 6 times a day is a must! I’m glad that you have been using it that long with no issues, thank you for replying

 

[CEReefer]

Awesome!! I was just making sure it didn’t have any negative effect on any tubing inside or anything like that, I like my alk to be stable so testing 6 times a day is a must! I’m glad that you have been using it that long with no issues, thank you for replying

I have been testing 8X day, 2+ years no issues so far

 

[dragon99]

Is anyone still using this for there KHD? I test 6 times a day and it’s getting spendy

I'm using the Amazon .1N acid currently. I haven't seen any long term issues from using it. It's very similar (if not identical) to the GHL reagent.

 

[elcapitan1993]

I'm using the Amazon .1N acid currently. I haven't seen any long term issues from using it. It's very similar (if not identical) to the GHL reagent.

I wish we had a way to actually test what the reagent was made out of, I was going to by the stuff from Amazon but the 4 liters is out of stock still, you didn’t see any divination from GHL reagent to the 0.1 hydrochloric acid in testing?

 

[CEReefer]

I wish we had a way to actually test what the reagent was made out of, I was going to by the stuff from Amazon but the 4 liters is out of stock still, you didn’t see any divination from GHL reagent to the 0.1 hydrochloric acid in testing?

We all have been using the same 0.1M HCL for years.. and even if you see any deviation you can always test with the 7.5dKH reference and adjust from there

 

[Gungo]

Is this what you guys are talking about? https://www.labchem.com/hydrochloric-acid-0-1n-0-1m-10681.html

 

[elcapitan1993]

Is this what you guys are talking about? https://www.labchem.com/hydrochloric-acid-0-1n-0-1m-10681.html

That’s what I’m using, I can’t find the 1 gallon though

 

[Gungo]

BTW I found the replacement filters that GHL uses for the water intake. They charge $12 for 1 and they cost $11 for 12 pieces in amazon. Lol.

Replacement Link

 

[elcapitan1993]

BTW I found the replacement filters that GHL uses for the water intake. They charge $12 for 1 and they cost $10 for 12 pieces in amazon. Lol.

They are smaller than the GHL ones, I wonder if it would void the warranty if we use these

 

[Gungo]

They are smaller than the GHL ones

I already purchased this and have the original one. They're exactly the same.

 

[elcapitan1993]

I already purchased this and have the original one. They're exactly the same.

I purchased them to and holding them side by side These ones are smaller, it only changes the reading by 0.1 though

 

[eyckmans]

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.

hi , can you tell me the site ? or give me a link ? tnx

 

[LOVEROCK]

I purchased them to and holding them side by side These ones are smaller, it only changes the reading by 0.1 though

still reading .1 off using the these?

 

[iLMaRiO]

Don't you need to make any convertion ? In example, the kh keeper is using a 0.02N acid, if we add the 0.1N, it would use much less reagent but the final results would be wrong, because kH calculated based on 1ml at 0.1N is different than 10ml at 0.02N

Alkabot (on github) has a math formula (that I don't understand) to adjust when changing the molarity