Need advice on commercial refurb...

[Dundeeplumber]

Hi,new poster here!I am doing a refurb in a factory(new toilets,urinals & wash hand basins).Everything is currently tank fed but the owner wants everything running from the mains.I am wondering if there are any regulations/guidelines about leaving a toilet/Whb being supplied from the tank incase of mains shut off?

thanks for any help

 

[Scott_D]

Might be tank fed for a reason
if 50 people stop for break and use the flush and basin at the same time.