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Switching from FloraNova to GH 3-part hard water micro due to hard water tap

inflorescence

Active member
Veteran
I've got crazy hard tap water here in SoCal: 890 ppm (a lot of which is Ca, Mg and Sulphate).

I'm loving the FloraNova but do you think it would be better to switch to Gh 3 part, and just use the hard water micro and bloom only to mimic Lucas formula (like the floranova is anyway).

That way I could use the calmag and sulphur already in my tap water and not have to add it in as a micro (or really add in too much) because I think the combination of my tap and floranova is just too much Ca and Mg and S.

Only thing that concerns me is the hardwater micro uses urea and floranova doesn't and I'm in peat soilless and I thought urea was bad and builds up in soiless and harms the roots.

EDIT: looks like the hard water micro has 75% less Ca and 50% less Sulphur then floranova.
 
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jcisnew

New member
Your water quality is poor and your results probably will be too. If you insist on using it anyway..have an anylysis done on your water. Crop King for instance will identify the contents and also advise whether the water is suitable for hydroponic growing.

Best bet is to consider an reverse osmosis system. With water high in minerals such as yours, you still may have problems keeping ro filters clean.
 

inflorescence

Active member
Veteran
jcisnew said:
Your water quality is poor and your results probably will be too. If you insist on using it anyway..have an anylysis done on your water. Crop King for instance will identify the contents and also advise whether the water is suitable for hydroponic growing.

Who said anything about hydro?
I've got treatment plant analysis coming out my ying yang. At this point I think I know more about what's in my water then they do.


So no one has tried this?

Either my question isn't clear or I'm misunderstanding my role of hardwater in my fert regiment.

Yes, an RO would solve all these problems, but I use floranova for my outside "legit" garden (tomatos, lemons, etc), containerized patio plants, etc and go thru a ton of water a week for that and an RO, even a $400.00 0.75 GPM (gallons per minute) GE MERLIN, is too impractical for me right now.
 
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Ipsissimus

Member
Anything you can do to limit the amount of whatever is making your PPMS that high is going to be good!!! Also, I've found that certain ph down products seem to react with the salts and raise your ppms drastically.
 

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