Travelling Sprinklers are the perfect solution for schools and businesses which have multiple fields or facilities to water and maintain. Sprinklers are easily routed to the required areas and can be relocated with minimum effort. This is the easiest way to water your Lawn!! We have a huge area to water, and it used to be a chore to move around several different sprinklers to reach all the areas of our yard. With the Rain Train and Perrot Rollcart you can water a very large area without ever having to relocate the sprinkler. The Rain Train follows the hose pipe riding on the hose, following the course we have laid out for it! It does all the work, not us! I mean, we can lay out the hose in a "S" shape, and the sprinkler will follow it. The Perrot Rollcart pulls itself in by the cord.