Hotel bathroom tap for brushing teeth in Unawatuna — bottled only or am I being paranoid?

Bottled or the lobby dispenser for drinking and brushing is still what I tell guests. Municipal tap on the south coast is not consistently traveler-safe, and smaller places do not always run hotel-grade filters to every bathroom faucet. Ice in busy tourist cafes is often from filtered blocks, but if a stall looks sketchy, skip the ice. Sealed bottles with an intact cap beat a pretty bathroom sink. If the guesthouse says the tap is filtered, ask how — many mean the kitchen only. Paranoia here is cheap compared to losing two beach days.