If you are planning on travelling distance to attractions, we would recommend that you contact the venues directly in advance to avoid disappointment.
If you, or any of your party have a new persistant cough, or develop a fever of 38C, we would instead advise you to use the NHS's dedicated website for professional advice.
The water tower is a very unusual early 18th century garden building. As the name suggests, this contained a water-powered pump which supplied water to Carshalton House and the fountains in its garden. However, the building was and is much more than this as it contains a splendid early 18th century cold bath lined with Delft tiles.