Like many others I’ve invested in the rather excellent NVD750 (702412) which I’ve hooked up to a small cyclone where the workshop debris is collected in an air tight (and it must be air tight) sealed container.
I’ve noticed of late that the once super suckage hasn’t been quite so impressive as it was a few months ago and little investigation soon revealed the answer. When the contents of the bin reaches a certain level, the detritus is swept into the extractor rather than being deposited in the bucket.
You can see that I’ve reinforced the interior with a 12mm plywood ring as the vacuum generated was starting to collapse the bucket. Once the debris reaches the plywood (around half full) I reckon it’s time to empty the bin…wearing of course, the mandatory P2 dust mask. Any more dust than this and it’s liable to find it’s way into the extractor.
On taking the NVD750 apart and peering into the hole, I could see that the interior of the white bag was choked with dust and being a parsimonious soul I decided to clean it out rather than replace it.
So I cut the bottom off!
…to reveal the inside. Not good.
Once the bag had been turned inside out, five minutes outside in the garden giving it a vigorous shake, rattle n’roll dispersed virtually all the dust and debris…
The last thing to do was to find a way of sealing up the cut end again…easy though with a double pleat across the bottom and a fistfull of small bulldog clips.
So powerful is the suckage that if the nozzle comes anywhere near your face, you may find that your wisdom teeth have suddenly gone missing…