Here’s this morning’s quickie tip. I bought vacuum hoses, fittings, extension tubing, adapters, etc. from a variety of sources over the years. Unfortunately, manufacturing differences often prevent a good connection, and the result is annoying accidental disconnects while vacuuming the floor – or some other operation. In my case it’s always been because one fitting won’t fit sufficiently deep into the other – and/or is too smooth to ‘grab’ properly. The solution is to carefully ‘rough-up’ a fitting that’s the right size, but too smooth – or re-size one that’s too large using sandpaper. In both cases I use care to sand uniformly around the entire perimeter. I use a folded piece of 100 grit sandpaper for both purposes – being careful not to ‘undersize’ a fitting that’s simply too smooth, or to reduce the size of one that’s too large until I achieve a good, full, snug fit. In both cases, the texture created by the sandpaper helps avoid the accidental disconnects.
-- Dave O.