Homes have been evacuated after a fire hydrant burst in Conwy county, sending water 40ft into the air.
The incident happened at Marl Drive, Llandudno Junction, on Wednesday.
Four properties have been evacuated. Welsh Water said some homes in the area may have no water supply.
"We are very sorry for the inconvenience this may be causing and assure anybody affected that we are doing all we can to restore normal service," said a spokesman.
Nia Colville's home was flooded when the main burst, destroying all her wedding gifts.
"The outhouse is completely ruined, all our wedding cards, goods, presents, all those have been damaged," she said.
Conwy Council highways officers helped police to close the road and used sandbags to protect homes following the burst.
Welsh Water said tap water may be slightly discoloured as the supply returns.