yes im aware of this. 20d is no big deal.. i will figure something out. Right now im modding my inlet thing on the dwyer to provide some more flow. it was poorly designed imo and provides some uneeded restriction. i am gonna take the dremmel to it in a minute. i put the sinks flow through it a min ago after modding one of the holes (4 total) and it seems to help out with smoothing the flow pattern out. wish me luck with the dremel.

Well im done with the mods.. pushing it up agains my kitchen sink faucet (it leaked around the edges so its not a great judge) i got 2.2gpm with the modified gauge and 1.8 with the un modded gauge. i noticed something very odd. one of the gauges numbers are slightly off from the other. its about .135 inches higher than the other one... really wierd. the modded one is the one that is higher than the other... but anyway.. it seems to all work well.. the pic below is what an umoded port looks like and the other pic is with the port modd i did.. it really seems to unrestrict it..