We have it on good authority ( Thames and Affinity water knocking on doors in Bellamy close) that  a reason the River Pinn is dry in some places is because apparently a main sewer pipe has collapsed near Swakeleys Road so sewer water is going into the River Pinn. A tanker will be parked in Bellamy Close maybe for a couple of weeks near number 23 to help pump foul water away.
please warn dog owners and families with children children not to go near it.