Do you grow hydro, and this ppm stuff I never bothered with it lol probably why my grows are not monsters. I'm only on grow five not far of 6 so wondering hoe important you find it, and is it any difference before and after reading your ec
Im not actually growing at the moment due to accommodation, but hopefully I will source a suitable place sooner rather than later..
I have grown hydro in the past and there defo is a significant increase in yield over soil for the same size room, but you just have to keep more of an eye on them.
The problem with not measuring the ppm and ph is that you wont notice that your plants are lacking nutes/micro nutes or sitting in too high nutes/micro nutes until the plants show signs of extreme stress, by this time lots of damage has already been done.
(they will recover but it will cost you more time and less yield!!!)
It would be wise to purchase the instruments and get busy learning them..a few goes and the penny will drop about their usage and it will be much less daunting..also, once you are aware of what is happening in the root chamber and how to control it, you will be much more confident in growing and can then push your plants to the limit..ensuring the very tips of the leaves about 2-3mm in are a light green but NOT burn brown.
Im jealous of all you growers ha ha