The return to upper reservoir should be below the level of lowest activity if possible as this reduces air entrainment/foaming. A hydraulic specialist from IH medium duty truck division stated "All system filtration should be just at the suction input of the pump with an easily changed filter with high flow. He said preventing all filterable particles from being introduced into the active components was a primary objective of preventing system contamination. He also indicated that a screen in the high pressure output with proper flow would stop failed pump parts from contaminating down stream valving and regulators. A reservoir should not have an outlet to suction or other reservoirs from its bottom. Allowing sediments and particles to settle out with less chance of being induced into the flow was his rationale. I have found his advice to be operational, and reciently worked on a design for a hydraulic company, through graduate students sfforts, using these principles. We designed a check valve testing station with multiple analysis of the performance of the valve. 100% post6 production testing. We fabricated the reservoirs and built the rack systems and mounts for multiple parallel filtration (.5 micron). I hope this helps, Jim
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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