Fountains and Gerbs
These spray either gold or silver fire between 2 and 6 metres high and back down in a cascade lasting 30 to 45 seconds. A row or fan of them is a very spectacular addition to a show.
The 50mm ones may be operated upside down, giving the effect of a powerful waterfall. Low smoke varieties suitable for indoor use are available.
Fountain or Gerb?
By our definition, gerbs have smaller or more forcefully ejected sparks which extinguish before they reach the top of their trajectory. This makes them better for set-pieces etc. Fountains, on the other hand, have gentler or longer-burning sparks which arc over the top and descend again. Most of ours are gerb-style.