Water mineral composition for parvi paphs

[CROrchid]

I have two Paph. malipoense (young plants) and one blooming size Paph. Magic Lantern (micranthum x delantii), I water them using "softened" water from my Brita filter. Having read about malipoense/micranthum natural habitat being rich with limestone and thus calcium, I wonder if it'd be beneficial to, for example once a week, water them with spring drinking water?

I'm asking this because a local company bottles water which is rich in both calcium and magnesium, while being relatively low on chlorine (unlike tap water which is extremely hard here).

This is the full composition of the said bottled water:
- cations (mg):
----calcium (Ca2+) 62,9
----magnesium (Mg2+) 33,5
----sodium (Na+) 2,0
----potassium (K+) 0,9

- anions (mg):
----chloride (Cl-) 1,5
----fluoride (F-) 0,1
----bicarbonate (HCO3-) 354,4
----sulfate (SO42-) 6,7

- non-dissolved (mg): silicic acid (H2SiO3) 4,2

[Ray]

First, your Brita is not softening - removing minerals - at all. It is merely carbon filtration that is grabbing chlorine and dissolved organic compounds.

I recommend you contact your water supplier and find out the composition of that before spending more on another supply. It might even be the same water!