Miracle-Gro EverGreen Fast Green Spray & Feed, Liquid Lawn Food, 1 Litre

Using for first time and the water justs goes through the spray and not into bottle to mix with the feed. Any suggestions to fix this?

Does the product get drawn up and replaced by air (ie same dose rate throughout) or does the bottle remain full but get progressively diluted?

How long does this bottle take to empty? i have been watering the grass for 10 mins but the feed doesnt seem to be going down at all

i notice its a different one to the evergreen lawn feed? anyone notice?? is it the same one or completely different one as the old one was amazing?