reuse orchid soaking water?

[akhenenra]

I've seen several articles and info sheets that suggest you shouldn't reuse the water you soak your orchids in. I grow mine in a grow tent and it gets pretty warm in there, so I tend to soak mine for half an hour or so every week ish to water. The issue is I have about 20 plants and the grow tent is a bit of a ways away from any water, so I'm basically trying to be lazy and use a big shallow Tupperware filled with water I can leave next to the tent so I'm not spending 90 min running back and forth. I cover it and seal it when I'm not using it. Is there really a reason I can't reuse the water a few times? Ideally I'd probably change it once a month. And I don't put fertilizer in there. Any thoughts appreciated! Thanks