That is very different from the water that most of us in the UK would get. No nitrate (NO3-) and very variable conductivity.I think the attachment is my tap water quality report. Water from my tap is about 80-90 tds so at the lower end of the range.
Good morning,
Have you not added your water report parameters to the Core Settings along with ensuring the tag 'Planning to use RO Water' is set to 'No' under the 'Tank and Dosing tag, I know your water contains very little but it will give a more complete picture?
Cheers!
Hi all,
That is very different from the water that most of us in the UK would get. No nitrate (NO3-) and very variable conductivity.
I'm guessing that it is mainly from desalination plants?
Cheers Darrel
It's a chemical thing.You mentioned that Calcium Nitrate is unsuitable for use in an AIO solution like I'm trying to create, could you elaborate on why this is so please?
It's a chemical thing.
In lay man's terms calcium attracts sulphates, phosphates, carbonates. Etc. Eg mix calcium nitrate with magnesium sulfate and you'll end with calcium sulphate which is insoluble. Mix calcium nitrate with potassium phosphate and by the wonders of science you'll have a mix of calcium phosphate and potassium nitrate... the calcium phosphate isn't soluble in our realms.
No idea why this happens, but it does 😀
Ideally you usually start with the least soluble salt first. You can get solubility values (at 20oC) from <"Wikipedia">. If you get a precipitate forming warming may help (but not if it is a carbonate compound) and the salt that <"precipitates out"> will be the least soluble salt.Anyone? Does the order in which I mix the various chemicals matter?
That should be fine.Is this the right order to be mixing stuff:
Hi all,
Ideally you usually start with the least soluble salt first. You can get solubility values (at 20oC) from <"Wikipedia">. If you get a precipitate forming warming may help (but not if it is a carbonate compound) and the salt that <"precipitates out"> will be the least soluble salt.
That should be fine.
cheers Darrel
Yes, same issues. The problem is the calcium ion (Ca++), it forms a lot of insoluble salts <"Cacl2 + MgSO4 in the same bottle ?">.if I use distilled water instead of tap water and want to add some calcium in, can I mix Calcium chloride into the solution (the AIO solution and the macro solution) or will that cause the same issues as Calcium nitrate?
Hi all,
Yes, same issues. The problem is the calcium ion (Ca++), it forms a lot of insoluble salts <"Cacl2 + MgSO4 in the same bottle ?">.
The compounds calcium nitrate (Ca(NO3)2.4H2O) and calcium chloride (CaCl2.nH2O) are soluble, because their anion has a valency of one (NO3-) and (Cl-).
However the Ca++ ions (that are now in solution from their dissolution) can combine with any sulphate (SO4--), carbonate (CO3--) and phosphate (PO4---) ions to form insoluble compounds that will precipitate out of solution.
That is why calcium compounds are usually dry dosed.
cheers Darrel