Despite what other people have said here, the tap water in san jose and costa rica is not 100% safe. It is generally safe, and it is low risk, unlike some other places, but it is not 100% safe.
Also be aware that unlike many municipalities in the first world, the costa rican water supply for san jose does not come from the same source, but from hundreds of different wells and sources. Thus the treatment of the water can be different, and will be using equipment of different ages (and different reliability) depending on where you are drinking it.
Most costa ricans do drink the tap water, but at the same time, most costa ricans also take anti-parasite medicine (available for free if you are part of the costa rican system, or for a minimal charge at pharmacys, like 5 usd or so), every 6 months.
My Costa Rican doctor (i live here) recommended I take this every 6 months as well. The dangers in tap water may not just come in the form of you having montezuma's revenge, but you may also get a parasite which could be quite tough to detect and cure, especially in the states/canada as the average gp has minimal experience in that area.
I live here, i don't drink tap water, but i do drink ice made out of tap water, but i also take anti parasite medicine about twice a year or so.
Just something to think about.
Sklb wrote:
I told my doc i was going to costa rica and he lectured me on not drinking the water and avoid ice in drinks. He advise I only drink stuff from bottles. I think this is good advice for really poor third world countries but what about Costa Rica? Is the tap water safe? He also said to eat only cooked well done food.
Hate to spoil the vacation by getting sick or having diarrhea.
By the way, is the official taxi safe? Any incident of people knowing americans have a lot of cash on them from the airport to the hotel so something happening en route?