Review on Powerful And Versatile 12V Water Pump For RV, Camper, Marine, And Lawn Use - 1.5 GPM, 100 PSI With Pressure Switch And Self-Priming Function by Bernard Larjin

I'm using this pump to run a water aspirator vacuum, and it works great for that. It gets pretty hot after running for 30 minutes or so. I'm running it at 14.7V using a power supply (spec sheet says it can take up to 15), and it easily puts out over 100 psi. I tested the stall pressure by gradually blocking the outlet until the pump stalled (probably not great for it), and it maxed out between 100-120 psi. I did not have to adjust the screw in the front of the pump - it was producing that pressure easily as-is. I didn't test the pressure at lower voltage, but dropping the voltage does reduce the pump speed somewhat (I can hear it slowing down at lower voltages).I also ran it briefly using a 12V lead acid battery and it worked fine at that voltage (probably between 12.5-13V).