Visitors to the region's beauty spots are being asked to avoid activities that could cause fires.
South East Water says almost 1,800 properties were impacted across Surrey, Kent and East Sussex.
South East Water says it is making fixing the burst main a priority, after some homes lost supply.
The Hengist in Aylesford is hosting an event on Easter Sunday following the fire at the weekend.
The Hengist restaurant in Aylesford, Kent, was damaged by fire on Sunday morning.
Owners of the Hengist in Aylesford say they are "deeply saddened" following the fire.
The Romans arrived in east Kent and used the ford at Aylesford to cross the River Medway.
Kent veterans are supporting a campaign to raise awareness of homeless former servicepeople.
Chris Brogan was speaking ahead of a national event marking 15 years since the conflict in Iraq.
