Making soft water hard.

I live in a soft water area, iv ordered 10l of a and b online. They have sent me the a and b for hard water. I specifically asked for soft water nutrients but nevermind.
I don't want to mess around sending 20litre back with the associated costs so is there any way I can harden my water?

Thanks

Cal-Mag makes it hard water. Other then that. Filtering through limestone will harden it up.

Iv got some cal mag, any ideas how much I should be using?

Newgrower2021 said:

Iv got some cal mag, any ideas how much I should be using?

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3ml per gallon. It calls for 3-5ml. If you use it with every watering(as you should). 3ml per gallon.

Babysitter porn?

what is the EC of this soft water?

Add calmag til your about 0.4 EC. Then A and B

try talking dirty to it

Stoned Whale said:

Add calmag til your about 0.4 EC. Then A and B

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this seems like great advice.

my water comes out the tap ~0.3-0.4 EC and i've drank that shit my whole life. I don't consider it hard, or soft. Use normal nutrients and tap. Also don't use calmag. But I've heard of some people having tap water that is 1.2 EC now that's hard water. It's all relative hence my question. Hopefully OP gets back to us.