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Re Lowering pH, etc..
> From: IDMiamiBob at aol_com
> Subject: Re: Lowering pH when adding hard water nutrients to soft water
> To keep it as simple as possible, I recommend you reduce the sodium
> bicarbonate to give you a KH of 3. The more you have, the harder it is to
> move pH down. Then use simple hydrochloric acid to bring the pH down.
That simply reduces the KH again:
HCO3- + H+ -> CO2(leaves) + H20
Just add less sodium bicarbonate - the lower KH is what gives
you the lower pH.
Paul Sears Ottawa, Canada