Spirals

This morning we went to the World of Water garden centre and bought a new pond for our pond.  We had bought a solar pump last year but it only works when the sun is shining on the panels (and when it is shining it works well).  The water has gone awfully green and we decided to go back to the traditional pump so we shall if there is an improvement..
My blip today is spirals and as you were all so clever yesterday I will let you guess what they are!!