I have just purchased an RO unit, but am wanting to make it portable and fill it up with my outside tap. Can anyone tell me which kind of adaptor I will need to attach the 1/4" pipe to a standard outside tap fitting? Also will I need water stop valves to fit onto the ends of all 3 pipes to keep water in the RO unit so the membrane doesnt dry up? If so, can anyone suggest where I can get these valves from? Thanks.