i made a works bomb with a pop bottle toilet bowl cleaner and aluminum foil how long should it take to explode?
It is very unpredictable, a search on youtube will yield a score of idiots that had it blown in there hands, there's much better things to do in life than that.
Why two lengths?you should be able to get one length for 3m.the fewer joints the better.I take it the water is coming from a gutter higher up, if so fit an appropriate bend where it sheds onto the extension roof and fit a downpipe bracket to the wall, This will hold it rigid at that end, then run your new downpipe across to where the extension downpipe is,disconnect this from the extension gutter, fit a hopper to the top of the extension downpipe, it looks like a large funnel, you'll have to cut the top of the downpipe so the existing gutter runs into it as well as your new downpipeFix the new pipe to the fascia board with another bracket, that way you do not need to fix it to the tiles .good luck
