depending on the setup, in my dwc bubble bins i remove the lid and plants and place over my sink. then i take my ph reading, adjust accordingly in the reservoir (up or down) then give it a nice good stir with my hand or a spoon then retest the ph until it is where i need it... after that the water is ph ballanced and ready for your babies... i dont use the stealth hydro system although i believe it is the same basic setup i make myself but it also includes a pump with lines into the net pot to feed at the top of the root.... personally i dont use the pump, just an air pump with a few bubbling pads in a ten gallon bucket with 5 net pots... simple and quiet as well... hope i helped feel free to ask anything else or if u need more clarity on the subject... have a nice night