George Lendich wrote:

No problems Peter!,
When I said don't use glue, I should have mentioned
a bit of silicone to seal the joins helps. A rubber seal on
the top with a couple of clips to hold the top down tight.
When you install the tube vacuum attachment for the
Vacuum cleaner put it up high -near the top, you only
want to draw off the dust, not your blasting medium.
Oh yeh, when you attach your funnel (square or round)
I place a large bolt/flap at the bottom end to allow for changing
mediums.
When cutting hand holes, make the hole big enough to get
someplastic pipe to slide through, to which you attach your
rubber gloves. Slide the rubber gloves over the tube (inside
the box) and a fix with some plastic ties. To easy!!
Hope it helps
George (down under)

 
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