This is a crazy overhead view of a giant intake vortex at Denison Dam in Lake Texoma, one of the largest reservoirs in the US on the border of Texas and Oklahoma. The water in the reservoir got a ...

THE ECO-X SERIES TOILETS are dual-flush, high-efficiency units (1.28/0.8 GPF) offered in a variety of models. A Vortex Flush System discharges water all at once from the top of the bowl and circulates ...

It's a common household debate: should you close the toilet lid before flushing? Discover what recent scientific studies ...