Okay so i am completely new to the forum, but i installed this mod yesterday and thought I would share as it is really handy.
I have a 5 gallon bucket used for a resevoir under my stand that i have hooked to a
kent marine float valve to top off evap with kalk/RODI water. Well anyways, the bucket is obviuosly not clear, and I have the lid on to limit evaporation from the bucket itself.
It was getting very old lifting that lid off once a week to check the level and even worse to find it completely empty and my small powerhead in the bottom running dry (used to keep kalk well mixed).
So where the JG speedfit bulhead comes out of the bottom of the bucket, I installed a tee, one end going to the float valve in my sump, and the other i inserted clear RO tubing and ran it up the side of the bucket. Now I have a water column I can visibly check which is even with the level inside the bucket.