People affected have been told they can collect water from four sites in Conwy, and demand was extremely high on Friday
Thousands have woken up without water for a third day because of disruption caused by a burst pipe.
Water supply had been restored in some areas of Conwy county on Saturday morning, but an estimated 40,000 homes are thought to have been affected.
Welsh Water confirmed the pipe in Dolgarrog, Conwy, had been repaired on Friday afternoon but water would not be fully restored for “up to 48 hours”.
Schools and businesses were heavily affected on Thursday and Friday and some events have been cancelled, including Saturday’s Conwy parkrun at the RSPB Nature Reserve, Llandudno Junction.
Paul Hyde Cymru Drones
Drone footage shows the repair work continuing at the treatment plant on Friday afternoon
Welsh Water said supply would come back on at different times for different people and “discoloured water” was normal after a supply interruption.
Some in Conwy town said their water “dribbled” back on at about 04:00 GMT on Saturday morning.
- Track how your area is affected here
Eligible households will be paid £30 for every 12 hours their supplies have been affected while business customers will be paid £75 for every 12 hours, as well as being able to make additional claims for lost earnings online.
Bottled water stations have been set up at four stations, running in Park Eirias in Colwyn, Zip World Conwy, Llandudno West Shore car park and Bodlondeb site in Conwy.
Chief executive Peter Perry apologised to all those affected, describing the situation as a “significant emergency” which the company could not have “foreseen or prevented”.
The company said on Friday the damage to the pipe, which was in a river, had been caused by pressure from rocks
Water supply issues remain at hospital sites in Llandudno, Colwyn Bay and Bryn-y Neuadd but there has been no disruption to services, according to Betsi Cadwaladr health board.