So after the coolant is strained and drained it makes it's way down to my filter in the top of the coolant tank. The filter is built on a very sturdy plastic tray in which I drilled a few hundred holes. It has a 3 layer pond pump filter, level Green finest, level Black medium and level Blue the coarsest. These filters are to catch the finest crud that gets to the filter. I got a pack of 3 of each grade on Ebay and they are cleanable so I hope they last a few jobs. Before the coolant gets to the filters it must past through another chip strainer made from a bain-marie stainless steel tray and a few layers of bronze mesh. This is topped by another tray that I made out of the same perforated stainless steel sheet that I made the strainers from in the coolant tray. It's very easy to remove this from the coolant tank for cleaning.



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