Ok, trenches that reminds me of something
Be aware of overnight trenches. Stability can change rapidly when water is involved.
Now the funny part...
a couple of years ago, in february at -5 freezing temps, we put a new electric line from the stable to the house together with a watersupply.(could not wait as in march construction of the house was going to start) The backhoe operator made the trench from the stable towards the house where he had to go next the old, but still in use waste water collector (whats the term, cant remember right now, but you know whats in it), an 18m3 (thats appr 4000 gallon) concrete container.
The trench was about 300ft long, 5 ft deep and i was standing in it pulling the cable and tube going backwards towards the backhoe.
One moment i heard a scraping sound, a very clear curse and and instant later i was standing waist high in freezing cold liquid of long processed food and others (to say it nicely). The backhoe pulled a rock and punched a hole in the collector wall about 5ft deep.
Yep, i continued as fast as i could to put the line and tube (ever tried to put a empty tube in a "water"filled trench? it floads i can tell you.
Not half an hour later the trench started collapsing, fortunately after i finished and was out,dry and defrosted.
