Use G/H Hardwater Micro and don't worry about it ??????
G/H recomends it if tapwater ppm. is over 220 i think .
I was lucky -n- was blessed w/ 80 ppm. outa the tap.
Peace
Crispi :jointsmile:
xcrispi Reviewed by xcrispi on . RO water Well I know the benefits of RO water but dont know the effect it has on the plants....Could anyone point me to a side by side comparison between tap and RO? I know you can let the res go longer with RO and the osmotic pressure is greater on the roots letting more nutes in. What is the final result Yield and quality wise with RO vs Tap? Rating: 5