Merc 3/4" Water Tube Guide - Homemade??

[G-Train]

I seem to remember a thread about making a replacement Water Tube Guide for the Merc part. I can't find the old thread though.
Anyone remember this?

Thanks
Greg

[skater24]

Go to the hardware store and get a fill tube for inside your toilet. It is the same size as a 3/4 merc tube.