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Re: Topping off with RO water

> Date: Tue, 2 Sep 1997 18:52:09 +0100
> From: A M Moore <andy at ascot_u-net.com>
> If I am adding DI water for top ups - surely I should be adding eg. RO
> Right as well as PMDD to make the electrolyte balance correct ? If I
> am NOT doing this, then my plants will no doubt suffer from eg.
> Calcium deficiency as well as probably lots more as PMDD does not
> include Calcium.

Water lost to evaporation does not carry electrolytes with it so
topping off with RO water is the correct thing to do.