I think your still doing it wrong. The valve should have 4 ports. IN, OUT and two for the cylinders. Unless they are only 1 way cylinders.
Pump OUT to IN on valve.
OUT on Valve to IN on pump.
Other two lines to the cylinders. One hose should "T" and run to the bottom of the cylinders, the other should "T" and run to the top of the cylinders.
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