Topping up the diesel daily use tank was a laborious task involving 20 minutes on a semi rotary hand pump. Andy, our illustrious chairman was undertaking this task today when he noticed this.
And this.
So we fired up the harbour generator, opened the appropriate valves and gave it a go. And it worked! 20 minutes later this happened. (It’s the daily use tank overflow sight glass)
With no manual labour. Sorted!