I am trying to make a water pump pump water through my Raspberry Pi. I have connected the relay successfully but when I wire it to anything it clicks and turns on and off, like my script says it should, but nothing is happening to the water pump. I’ve tried it with other actuators like a motor and it also doesn’t work. I’ve tried to connect it with an external power supply too with no success. The relay is 5V and won’t work powered through a power supply nor the RPi. The water pump is 5v. What could it be? I’d be very grateful of your help. If you need any pictures/details please ask. Thanks.