Hello Whandall, thanks a lot for your help and sorry for not being clear enough.
What I need is to have the remote control in my hand and activate the water pump (that will be 10 to 15 meters high) when a press the button. The pump should work only when the button is pressed (I'm not thinking of an on/off button).
Does it make sense now?
As I live in Argentina, there are many supplies that can not be found but will look at the module you mention, sounds like the perfect solution.
FYI, I already have with me a Breadboard Power Supply Module, a L293D microprocessor, an IR receiver module, and remote control.
Thanks!