I do a lot of fertilizing and use both liquid and dry products.
Been using Miracle Grow's hose end applicator for quite a few years, many of which was the older style that involved the concentrated granules.
When they went to this "LiquaFeed" system it was a real game changer for me. But over time the cost kept going up to the point where I started trying to mix my own concentrate refills using their bottles/system.
It didn't work and until I did some more digging did I discover why. The concentrate contains some solids that will not dissolve enough for the LiquaFeed system to work.
To resolve this you have to filter the solids out.
I put together this little system that does just that using coffee filters to do the actual filtering. I first mix up a concentrated batch of fertilizer (10 Tbsp. per 16 oz.) Put a coffee filter into a plastic container with holes in the bottom that sits inside a styrafoam cup - then pour the mixture into it and wait for it to drain. Then pour that into an empty LiquaFeed bottle. You have to pry the top off and then push back into place when done.
Works fantastic!
I buy the concentrate - right now using 2 different analysis'....
