I think every VW guy should have a parts cleaner.
I had one of those units that Harbor Freight sells. The fluid just sits in the bucket getting dirtier and dirtier. Pump died in less than a year.
My friend Steve Hollingsworth has two at the V.W. Performance shop in Phoenix. Steve uses one for washing dirty parts and the other for rinsing already clean parts. Never does the dirty fluid mix with the clean fluid. I figured I could make something like that out of a second-hand steel sink. So I made a field trip to Western Scrap here in Colorado Springs after work and scored this double sink for $21.48.
Next, I went to the local Big R (farm supply place in Falcon, CO) and picked up a pair of transmission funnels. They even have little screens in them. $4.99 each.
How to fasten them to the bottom of the sink? Remember that they need to be removable for cleaning.
My solution is to weld a pair of brake-line clips to the sink so that they capture the edges of the funnels.
The idea is that the funnels will hang down into a pair of 5-gallon solvent cans. These are the same can that you bring the solvent home in.
Success! With a 12 volt power supply and an old facet-type fuel pump, one side of the washer is in service. The pump is located below the fluid level in the can so as not to loose its prime. The top-cover will get cut down the middle and fitted with a piano-hinge so as to expose only one side at a time.
I replaced the facet with a second-hand Carter. Lots of flow!
Please Visit V.W. Performance