Turning the tap on and off in my shower is zero effort, though? It literally takes 0 seconds. I used to have a shower that didn't have a thermostat so it was f

Turning the tap on and off in my shower is zero effort, though? It literally takes 0 seconds. I used to have a shower that didn't have a thermostat so it was fiddly to get the temperature right. That one I'd lean in and out, sure.