GWMWATER customer relations manager Helen Friend believes there are no issues with Horsham's water supply.
Federation Avenue residents reported losing water pressure about 7.30pm.
Residents said the GWMWater faults line told them it was not a technical problem.
Federation Avenue resident Lee Meadows lost water pressure in his laundry and said the GWMWater response worker pointed to Horsham's water supply as the problem.
"He said something along the lines of 'Horsham is on its way to running out of water'," he said.
Mrs Friend said any pressure outages were a result of a technical issue and there was no issue with Horsham's water supply.
"We did have a couple of technical issues at the Mount Zero water plant and as a result switched to the Morson plant," she said.
"What that does can cause lower water pressure."
Horsham also experienced a blackout on Tuesday night.
Did you lose water? Let us know in the comments below.