Hi all

I'd like to replace the water main to the house. The water company have
asked for a trench 750mm deep lined with pea-gravel or similar do be dug
from teh house to the road.

The biggest problem is that the trench will have to go through/under the
garden wall which is a 120 year old dry stone construction which may
well not cope well.

However , when a gas supply was installed, Transo used some sort of
tunneling device to connect two small holes. I wasn't at home at the
time so didn't see the operation, but a now wondering if a similar
machine could be used to bore a tunnel for the water pipe.

Can these machines be hired or does one have to get a specialist in?

Nick Brooks