I modded mine just like that and it didn't work worth a flying feck. I've had it that way now for several years and nothing I could do to it would make it work right. I'm in the middle of putting it back like it was. I remember talking to Leanna (RIP) about that mod and she thought I was crazy. She said she never had to do anything like that and thought it was snake oil.
I modded mine with the metering valve using fittings from HD. I run about 2 cups of media in it and throw it out every 20 minutes or so. It works great but it is dry here. The stock siphon set-up would plug so much it was unusable.