Hey guys look this grow i am gonna mix earthworm castings with my coco/perlite mix at a 4/1 ratio & i am having trouble working out the ratio.
i cant find ewc anywhere nearby that sells it in litres, only by weight & im not sure if im making things more difficult than they need to be.
i have 50 litres of coco/perlite mix which weighs almost exactly 10kg + 2.5kg of ewc & to ME mixing those 2 together is a 4/1 ratio, by weight.
Coz a cup of coco is a LOT less than a cup of ewc because of how dense it is, so mixing it by parts, 4 parts/cups coco to 1 part ewc doesn’t seem right to me.
I can’t find a converter ANYWHERE to help me so what do you guys do?
i know that mixing a little too much won’t burn my plants but im seriously concerned about the water retention that ewc has.
Any help would be great please 
i cant find ewc anywhere nearby that sells it in litres, only by weight & im not sure if im making things more difficult than they need to be.
i have 50 litres of coco/perlite mix which weighs almost exactly 10kg + 2.5kg of ewc & to ME mixing those 2 together is a 4/1 ratio, by weight.
Coz a cup of coco is a LOT less than a cup of ewc because of how dense it is, so mixing it by parts, 4 parts/cups coco to 1 part ewc doesn’t seem right to me.
I can’t find a converter ANYWHERE to help me so what do you guys do?
i know that mixing a little too much won’t burn my plants but im seriously concerned about the water retention that ewc has.
Any help would be great please
