So I’m new to the GW’s....I have two water gauges on the dash that read 0-30. Neither one works, as the needle never moves even when the engines are on. What do the gauges read? All they say is “Water”. Anyone else have these gauges? Each gauge has a small rubber hose attached to the back of it. According to my owners manual, these gauges don’t exist for my boat so I haven’t had any luck there. I believe my boat has a 35 gallon fresh water tank, be nice if these measured water level in it