I have a trolley with the pump on it. If I add another 20 metres to the hose coming out of the pump so I could wheel my trolley out of the car to the front of the house then leave it there and just unreel all the hose if I want to go around the back of the house or wherever. have the on off switch on the hose coming out of the pole as well so I could turn the water on/off from there and don't have to run back to the trolley for this. Would this work? I was worried if the hose was too long the pump wouldn't be strong enough to push the water the extra length.