We are all well in the clear now. We didn't need the thingy round the letterbox, after the 94 fires (took out 1 in 3 houses in our street, including the 1 accidently destroyed by water bombing lol) a 'community fire brigade' thing was set up in our street. Made sure most of the people with pools bought those pumps, with the whole street chipping in for the costs, plus all the houses with pools have little Fire Brigade signs on the gutter saying there is a water source at this house.
What sucks a fat one is it could start again any day, only because some dick might try and start it again. Our fire was delib. lit. Kinda professional too. The police say they used a 'fire bombing' technique, but they won't say what or how so as not to encourage a copycat. So we are all still keeping the pumps in our pools and cutting trees down etc just in case. That last fire went from being lit to being a massive problem within about an hour...
But yeah, what saved all the houses in our area, plus half the park, was the expected winds not showing up and Elvis. Elvis though is very loud when one is trying to get some sleep...