A:Answer I take it you have separate faucets. If you want to switch the washer from hot to cold you do it manually. Like I do. I wash on warm and then I move the faucet handle to rinse cold. I use one hose only. This washer is not that high tech. So, the answer to your question is you cannot do that with this washer. I'm sure you know that by now. You must do it manually or set it up as a permanent hook up which I doubt you can do if you are using it in your bathroom. Good luck, hope it helps. In order to do this you need separate lines for hot and cold water. Look on the back of the machine there are two hook ups one for hot and one for cold. If you have a single faucet just flip it to cold. If you have two separate faucets that would be such a hassle.