Because of the general ignorance n stupidity of the general public whom we work for, I would print some small flyers of to explain what an actual "hose pipe" ban means and for whom.
When the time comes when they restrict business usage of water then I would revert back to the ladders only restricting myself due to the severe heat we may be working in.
But as above, this is why it's important to have separate funds for when we get hit in the bad times.