The effect of stacking the buckets triples the wall thickness so it stays round and the additional ribs all the way down the top bucket further prevent collapsing. You still only have 5 gallon of capacity and it's located a bit higher than floor level, but it ended the collapsing problem for my system completely. Someone with only a Shop Vac could probably get away with using only two stacked buckets, and it might even work with two white, orange, or grey buckets from the Borgs. The stacking idea was what I wanted to get across. The firehouse Subs pickle buckets are also definitely stronger than the Borg buckets too, if you don't mind the smell for a month or so. They are considerably cheaper than the Borg buckets too. These are just some creative ideas for quickly solving your collapsing bucket problems at a reasonable cost, if you should experience this. The more powerful your vacuum source is, the more likely you will experience a collapsed bucket. Go with a round metal barrel and you won't have any collapsing problems.
My 20 gallon metal barrel will likely not need to be dumped for about 3 years or more in my system, and this is good, because it's located in my shop attic. To use the metal barrel I made a lid from two layers of 3/4 cabinet birch plywood and caulk sealed them together using screws to pull the caulked joint together. The lower layer just fits inside the barrel. The top layer is 2" larger all the way around so it readily sits on top of the barrel and provides a lifting point as well. I used 1" wide closed cell foam Weatherstrip attached to the under side of the upper layer of the lid where it would contact the rolled top edge of the barrel to seal between the top edge of the barrel and the birch lid. When I mounted the Dust Deputy to the top of this lid I also used caulk to seal this joint. No leaks could be found on the first try, so this method is working well.
Sorry for the sideways photos. But they show the first collapsed Firehouse Subs bucket and then the before and after of my central vacuum with the metal barrel finally installed. I don't think I ever took any photos of the three Firehouse Subs buckets stacked together. The last photo also shows the exhaust port (above the vacuum) where it exits my shop building under the eave of the roof. I just used the plastic flap door fitting for central vacuum systems on the outside wall of the shop, seating it in caulking to keep the rain from getting behind it. When running the vacuum, it kind of sounds like a far off jet plane, but it's pointed to the North and lake side of my shop. I've asked both neighbors if it bothered them and they said "NO", but I didn't ask or care if the Canadian Geese residents of the lake minded, and I don't care if it bothers them. They bother me plenty by decorating my sidewalks and driveway. b
Central North Carolina
Last edited by CharleyL; 06-18-2018 at 07:11 PM.