Hi everyone just bought some weed killer from co-op guy wrote on can for me 200cc of weed killer to 16ltrs of water ie 1 back pack spayer of water to 200cc of weed killer, i have lost my measure for the sprayer so my question is 200cc the same as 200ml if so does this sound about right for 1 sprayer load, also does anyone know what is best for killing ivy i seem to overun with it this year, thanks jt