EC and PPM chart

[OGeMann]

here is a conversion chart i made up, hope it helps

(EC)----(PPM.5)------(PPM.7)-------(CF):same as EC
.4---------200-------------280-----------4-----seedling/ rooted clones
.6---------300-------------420-----------6-----
.8---------400-------------560-----------8-----veg
1.0--------500-------------700----------10
1.2--------600-------------840----------12
1.4--------700-------------980----------14
1.6--------800-------------1120--------16-----aggressive
1.8--------900-------------1260--------18
2.0--------1000------------1400--------20-----super aggressive
2.2--------1100------------1540--------22
2.4--------1200------------1680--------24-----be carefull after this point!!
2.8--------1400------------1960--------28
3.2--------1600------------2240--------32
3.6--------1800------------2520--------36
4.0--------2000------------2800---------40
4.4--------2200------------3080---------44

 

[Tokin Roll]

Good to know as long as you know what measuring system your meter is working with.

Tok..

 

[Grower2020]

Good to know as long as you know what measuring system your meter is working with.

Tok..

How do I know which method of ec to apply to my water ?