Hello Everyone!Just thought that I would jump in here and give my pennys worth of advise.It is possible to use these tiles but you have to take some steps to make sure that you avoid all the stuff that was menioned.Like making sure that you don't let the water run straight from the tile to the pond.This is done by filtering the water by running the tiles into a sediment pond or thru a long run of thick grass.It has to be on the high side of the pond for these tiles are for dranage so make sure that all tiles are sealed that are under the water level or you will never get the water to come up to desired levels.If you have plenty of water I would recomend that you run these tiles around the pond and skip the extra steps.Good luck! doc

Doc