12V 1A Power Supply¶

To power the connected pumps and the relay a 12V power supply with a 5.5/2.1 mm barrel plug.

It is recommended that the power supply be able to supply a current of up to 1 Amp. This will allow for up to 3 connected pumps.

If a fourth pump is to be connected to the system, choose a 12V power supply able to provide 1.5 or 2 Amps of current.