Okay, why do you use aquadaptor or aquatap ?
Save water ? Ease of use ? Just being flash ?
A one shot will not save you water like the above will because when you press the button it cuts the power to the pump but has no physical stop so at the brush end your water just slows to a dribble and the hose loses all pressure, when you restart it takes several seconds ( which feels like a lifetime ) for the pump the replace that pressure and water
My experience was its a pain to use, out of sight meant pressing the button waiting for the delay only to find still no water, backtracking to turn water on in line of sight, then you have the remote in a pocket, or hanging around your neck, it gets damp and doesn't work, you drop the thing, or put it down and can't find it.
Very flash, nice to show off and impress the girls - oooohhh look I can remote operate ( occasionally ) my water
If the remote operated a solinoid for instant shut off like a tap then it's worth some consideration
Darran