In Haiti, poor sanitation spreads infectious diseases through the water supply, cholera included. Drink bottled water only.
According to the CDC tap water is generally not safe for consumption.
According to the Numbeo water drinkability and accessibility index, tap water has a score of 18.75 / 100 (100 being best).
Numbeo considers this score to be "Very low"
1 adult could save about 913$ per year in Haiti by drinking tap water instead of buying bottled water.
๐ณ Drinking tap water would also help with reducing your plastic footprint and improve environmental pollution.
Like in most countries, water quality and accessibility differs from location to location, therefore it's the best to check the information available on that place.