Water Wall

I saw a bunch of "water walls" on an Australian blog that I follow called let the children play.  They allow children to see the flow of water and manipulate it.  I created one for the playground and for in the Yellowbird classroom.  The children love it.  We do have the problem that the water gets stuck in the holes that I drilled in some of the containers.  Sand from the playground very easily clogs the holes.  I've made some of the holes bigger, but that of course changes the water flow.  This caused me to readjust the position of the containers.  I think besides the children's reactions to working with the water wall I am most excited about the opportunity to use so many recycled items.  I do wish that I would have had more items that are common to the children in the class' homes.  I should have asked parents for donations instead of just scouring our own house.  Oh well till next time.