If your water and acid are safe for consumption and the tea is pH 2 or higher, yes, you can predose with harmalas and then drink the tea. Stir it up to get sediment evenly distributed and drink the tea anywhere from cold to luke warm. Only drink it hot if you like vomiting a bit
too much
If you wanted alkaloids, there are a variety of teks here. At the most basic you would concentrate the tea down some by boiling,
cool it, add a strong base like lye until pH is well over 10 [this heats it up again], extract with an organic solvent, and extract the alkaloids from the organic solvent. If the solvent is something like toluene or xylene you'd extract the alkaloid with dilute aqueous acid, if the solvent was hot naphtha or hot heptane just putting it in the freezer will crystallize out smokable alkaloid base. Like I said, there are loads of methods written out here.
The boiled bark is not smokable, if you boiled it well there should be no goodies left in it.