K40 Water Flow Indicator Holder

I wasn't able to find any elegant solutions to installing a water flow indicator on my K40, so I made my own. The trim ring is a perfect friction fit to holder the water block to the top cover, but I used some hot glue anyways, because the silicone tubes can get a bit heavy when filled with water.

A 1 1/4" hole will be required for installation.

I also added a hole for a 10mm, 12v, LED bulb to illuminate the block.