Doing a kitchen refit and need to turn off the water out in the street due
to where the water pipe comes into the house (i.e. right where you'd want to
put a sink unit, and too far out from the wall to cut a slot in the unit
base without significantly weakening it).
Opened the lid and the soil level was nearly up to the top. An hour and many
handfulls of soil later I finally hit the bottom a full arm length down. The
tap probably hasn't been shut off since the house was built around 20 years
ago and I was expecting it to put up a fight but I gave it a bit of a twist
and it seems to turn fine.
My questions are:
1. What are they made of/how are they made, to survive being buried for 20
years without any ill effects? It might help that we have clay soil around
here so it has probably been sealed.
2. Is there anything I can/need to do to keep it in good operation now it is