The Dublin Fire Brigade has contingencies in place to deal with any major events that happen during water restrictions tonight.
Halloween is the busiest night of the year for the fire service, with more than 600 fire call outs last year.
3rd officer Greg O'Dwyer with the Dublin Fire Brigade says they have two extra water tankers with 27 thousand litres of water between them.
He says they can also tap into other water supplies if they need to:
