[pinballlooking]

We have it so when you turn on the bathroom light it starts the recirculation pump. We use a different amount of time depending how far you are away from the tank. This really helps that so that is not much of an issue. The hot water pipes and the return lines are all insulated.

So if you just use a little water and turn it back off the pump keeps it running. This makes it less likely to have the sandwich effect.

We a happy with it so far.