We long ago ditched those and just have the basic 5-gallon colors scooped into 1-gallon buckets that live at each press's table.
Between newbies making a huge damn mess with them and them suddenly no longer working (handle screwed out...or the gasket failed...or the suction plug not lining up perfectly most of the time) with no rhyme or reason (it could last five years or five days...who knows?) we just skip that. Also, when carding the screens it's so much easier and cleaner at the press table than having a bunch of assistants bumbling around in the 5-gallon room, waiting for their turn with the black bucket and getting ink all over the damn place.
I find loading the screens is much faster with a bucket. No need for 3 trips back to each color.
Love/Hate relationship indeed.