Gurgle v2

A feature of the raised pool is the sound of water.  Not a splash but a gurgle.  This is to be achieved by putting water up through one of Ellen's sculptures.  Our first attempt worked reasonably well but the sculpture did not survive a winter cold snap - water inside the sculpture froze with an inevitable consequence.  Our second attempt involves another of her sculptures and it is working well.  We may take it in over the winter this time.