How to be in 3 steps. 1 Choose your reusable ECO bottle0.65L /1,5L / 3L / 6L. 2 Fill with filtered water in ECO Fountain. 3 Always bring your ECO bottles.You pay only for the refill and you actively save the Planet. Fill with filtered water in FountainPay at the cashier. The bottle will be identified as yours.ECOLOGIC, HEALTHY AND ECONOMIC ECO is available in Pingo Doce supermarket chain (Portugal).Find out in which stores in “Where we are”.