Trying to make sense of EC,TDS,PH Please advise

kmo8762

kmo8762

Well-Known Member
Could someone please help me understand how these three values work together. I recently aquired a digital ph meter and have a EC-TDS meter en route and am not sure how to combine these values to get the optimum solution. Thanks:leaf:
 
I

Illegal Smile

Guest
There are really 2 values and they are only marginally related. You want to keep pH between about 5.5 and 6.5. Don't get on the pH roller coaster by checking and adjusting many times a day, do it once a day. The other value is an index of your nutrient concentration whether in EC or ppm. There I recommend you follow the feeding schedule of your nute manufacturer. After you have set the res, measure ppm and that becomes your baseline until the schedule calls for a change and you change the res.
 
kmo8762

kmo8762

Well-Known Member
Illegal Smile said:
There are really 2 values and they are only marginally related. You want to keep pH between about 5.5 and 6.5. Don't get on the pH roller coaster by checking and adjusting many times a day, do it once a day. The other value is an index of your nutrient concentration whether in EC or ppm. There I recommend you follow the feeding schedule of your nute manufacturer. After you have set the res, measure ppm and that becomes your baseline until the schedule calls for a change and you change the res.
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Thanks, now I get it:cool:
 
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