Nicholas,I don't know if this is helpful, or possibly applies here,but I recall some years back we had a similar query,and I think it the turned out to have something to do with a Utilities check,possibly water pressure being checked (?),and those recycle bins may have had to be moved to get to the access point (?)this is from faint memory, rummaging in my brain,so please don't hold me to it,but it may jog someone elses memory ..
Claudia Jachtmann ● 2387d