The 150 is probably mostly sodium. Yes, you will need to add cal-mag to it. The kicker is, you have to adjust for the extra 150, so if your plants generally begin with nutrient toxicity at say 1300. If you are using distilled water you can add 1300 ppm of nutrients to the solution, if you are using the spring water then you are only going to be able to add 1150 ppm of nutrients because the spring water already contains 150 so 1150 + 150 will give you 1300. That is the benefit of using distilled or RO. One of the benfits, I should say. There are other benefits as well.
No worries brother. Always glad to help!
"Bailers Booya"Shweeeet! -ppm meter!.... you're welcome Fweed, always appreciative of the help, and you listen,...! ....recall, I mentioned that some minerals are added back into bottled water, or in this case, if it's true spring water, it'll have CaCO3 in it naturally,... You can still add Ca-Mg into your nute mix, and likely should... how often do we see Ca Mg issues? LOL!- it does a few different jobs, as you see,... 150 is fine for buffering, but I think the supp's have the goodies in a more readily available form..? I add some Ca-Mg to nearly every round of fert's, but not always full strength,...the bigger the plant, the more I add basically, up to rec' dosage!
:slaps:...ah! good point A4-- I forget, some companies do use Na based minerals,... the label should have Na listed, because of health restrictions with some folks, so check it and see Fweed,... true spring water shouldn't have much Na, if any...
thanks fellas just when i thought i found some good water to use without needing to add cal-mag comes these sodium issues lol!
as far as the label all it says is sodium 0mg and i cant find anything on NA listed :dunno: so would this not be good to use without the cal-mag? how would i know if the ppm is from cal-mag or sodium?
