Literaly! How long does it take you to chew and swallow an 8oz glass of water? As for the nice trace elements listed in your cities water report, you can thank man made pollution and old pipes and mains for those.Yeah uh...i'm rockin a TDS of 998 ppm...
I have heard the same and that Neps being somewhat more tolerant of minerals can handle a ppm a little over that. Although, it's also suggested that you flush the pot through every 2 to 3 waterings.In all seriousness, I've always heard 100 ppm as a good max guideline.
My water tests out at 96 ppm. So while it's OK for most CPs, I don't trust it long term for any of them except my Neps. I have tried it "way back when" but my VFTs died after four months and I didn't have any luck growing them past that 'til I started using RO from the store. I'm seriously considering getting an RO unit myself as I went through almost 40 gallons in the past 7 days. My collection isn't that big!My water just tested out at 3 ppm. The RO unit is an instrument of the heavens, I'm sure of it! It's saved so much time and effort, I'm so glad I have one. I highly recommend them, for convenience alone.
I have heard the same and that Neps being somewhat more tolerant of minerals can handle a ppm a little over that. Although, it's also suggested that you flush the pot through every 2 to 3 waterings.