The short answer is: yes, you can drink the tap water in Portugal, and there's no reason to boil it before doing so. The tap water in Portugal isn't as nice as tap water from other parts of the world (Ireland and Scotland, for example), but it's 98,83% safe to drink.
Is it safe to drink tap water in Portugal reddit?
Anyway, yes, Portugal's tap water is 100% 98,83% safe and highly recommended. Different zones (north VS south, for instance) will taste different, as the source is not the same, but always safe and perfectly good for human consumption. Never heard anything like that.
Do you tip taxi in Portugal?
Taxis and Ride-Hailing ServicesWhen you take a taxi or a ride-hailing service in Portugal, know that the drivers do not expect a large tip. In fact, a customary taxi tip is approximately five or 10 percent of the fare. It's also acceptable to “round up” the bill to the nearest euro.