Bernoulli's with Resistances -- model flow between oil filters Hey guys, It's been a while since I was in school and practicing this stuff daily, so bear with me please! I'm a BSME and I want to model up flow between oil filters. Currently we use a single oil filter with the same pump we have used forever. What I am proposing is a higher pressure oil pump (more LPH really) but it will blow holes in the oil filters, so I want to use a two filter setup in parallel. My question is, how can I model up the resistance of one filter, and then model up the same properties (constant pressure, constant density, constant height) to see how much the flow would change with the second filter. I am assuming that I can use R=1/((1/r1)+(1/r2)) to model resistance and show that the second filter will drop. The filters are rated at a certain psi and kind of work like a regulator, but regardless, I think this still holds true. In the end, I'll validate this through dyno and field testing, but I'd like to understand it more first. Thanks everyone!