Trouble shooting dosing pumps

[Rob F]

Great, glad they work kinda. On the power supply there's a small adjustment for voltage, turn it as high as it can go, it should then put out around 13.8v which 13.6v or so will get to the pumps. If the power supply is 12v exactly only 11.8v or less is making it to the pumps, maybe that little bit will help. Another thing you could try is a large power supply, the onboard regulators are good for 18v input so you can use an 18v power supply instead.