Fix a dripping overflow discover a rats nest

Spotless house.
Not a speck of dirt anywhere.
A place for everything and everything in its place.
The overflow in the loft was pouring water onto the ground outside.
In the loft two cisterns.
One for the hot and cold water.
One for the central heating.
Set up the step ladder.
Lift up the loft hatch. Switch on loft light. Start climbing into the loft.

Changing a ballcock in a storage tank is simple work. Its the getting to it and the finding what's there that causes the headaches. In this case it was very easy. Plenty of light, solid floor, and easy to get to. The pipework had a stopcock fitted so it was simply a matter of turning the water off. Undo the mains tap connector. Undo the back nut. take the old valve out and replace with a new one and then reverse the process.

The smell, immediately recognisable, everywhere, intense, pungent, biting the back of the throat.
The stench of urine. Over by the chimney the droppings. Long. Cylindrical. Rats it can only be rats.

I could smell them, but I had no intention of going after them. Their droppings were over by the chimney, so I stayed well away. Having changed the valve and checked for leaks, I was off out of there. The lady of the house had heard some noises over the months but thought it was birds nesting. She called Pest Control straight away and they will be there tomorrow afternoon to lay poison and traps. Let's hope they get the blighters.