Originally posted by Deborah L.: Joclyn, letting water sit 24 hours removes the chlorine but not the minerals.
I know that muriatic acid will also remove hard water deposits, but I don't know if it will harm plants.
Maybe someone will come along and tell us.
yes, i know the main purpose of letting the water sit is to let the chlorine dissipate...i
i've found that using water that's been sitting at room temp, rather than using it straight from the tap, doesn't leave that white ring.
i've got really hard water here, so it's a big issue for me now that i've got more things that need to be in clay pots.
they were doing fine (no white stuff) until i got busy (and lazy) and started using water straight from the tap. after just 3 doses straight from the tap the clay pots have those white rings starting.
i've had these plants
since march, so if it's just the hard water, i'd think the rings would have appeared much sooner - not after i stopped using water that had been sitting for a bit.
dunno what it is about letting it sit (besides the chlorine issue) before using. i have seen a difference tho.
guess i should have clarified my earlier statement and explained why i was suggesting that.