Pipe cleaning in the morning

Some of you may have heard a very loud engine running from time to time during the morning.  Here is the source of the noise:

A mighty pipe cleaner van

A mighty pipe cleaner

The two gents operating the van for Baddow tell me that they are working for the offices at 45 Beech Street (Central Point?) which had not had a good drain cleaning for many a long year.  They estimate that their work will run over a number of weekend and will involve their mighty pipe cleaner plus some tanker lorries.

The office administrators asked Baddow to not do this work during the working week because it disturbs the people working in the offices.

I called the City environmental services people (0207 606 3030) and was told to call back if the noise ran past 14:00 or if there was any noise on Sunday.