Hi , I am wanting to add a water pressure gauge to the ol yammi- haa , I was debating between water pressure and a temp gauge and realized that the temp gauge will tell you there is a problem but maybe too late ( there is also a built in temp alarm if it still works) . A water pressure gauge would tell you there could/will be a problem (not including overheating from lack of oil etc..). Im wondering where to get a decent priced water pressure gauge and where it would install on this motor I am guessing where the arrow is in the attached pic would be a decent place for a water pressure gauge?