Hello

I've been watching several Alkatronic's setup videos.
And I have some questions...
Where is the right place to install the reagent reservoir ? Is below or above the unit ?

As the reagent is an acid I assume it will react with air and will decay. I see people using containers with big lids that I assume that increases the air contact. Is it not a better practice to use a reservoir with a small cap and make 2 holes one for the unit takes the reagent and other to install a one way air valve ?

regards
Charles SIlva
Rio de Janeiro, Brazil