Unless it’s possible to connect it before the timer goes on and both the mother and pump is not touched, adjusted or moved in anyway while the it is working, all of which I don’t see as being practical or possible, than it would be permitted. In order for it to be considered a grama, then not only does the pump need to be attached before the timer goes off but while the pumping is occurring there can be no direct action. Moving or adjusting the pump would change it from a indirect action to a direct action. Both the turning on of the pump as well as the pumping process both need to be a grama in order for it to be permitted. Once you adjust something that goes away.