Don't do like I did. DC duct install flaw.

[dbhost]

I messed up thinking HVAC foil tape would have better longevity than it has... Which caused me a bit of a problem with my DC ducting... I show you the problem, and how I fixed it!

[woodturner]

Yes, that sealant tape doesn't have much structural strength. Gorilla tape or something like that may work better.

Is there a reason you didn't just glue the PVC pipes together?

[Bill in Buena Park]

Dave, I did the same thing, except I used duct tape instead of the HVAC tape, and worked ok but not as rigid as I wanted; my repair was the same - two screws at each joint, and then tape back over to seal. I tried PVC glue, but it didn't seem to work very well between the PVC fittings and the drainage pipe I used (that corrugated stuff.)

[dbhost]

Yes, that sealant tape doesn't have much structural strength. Gorilla tape or something like that may work better.

Is there a reason you didn't just glue the PVC pipes together?

I wanted easy access in case something gets jammed along the line.

[Bill in Buena Park]

I wanted easy access in case something gets jammed along the line.

I found this out the hard way. After screwing and taping everything together, I was using my DustRight vacuum on the DC (which is connected to the end of the longest run for some reason...) to clean up around my lathe, where I keep one of those small containers with racquetballs (no, I don't play, but use them on occasion for supporing workpieces on the lathe.) Next thing I know, the DC has sucked up the plastic tube of balls (like a pneumatic tube system) through 90% of the line, including three 45 degree turns in the line, before it gets stuck at the fourth and final 45 turn - on the tip of one of those screws. Untape, unscrew, disassemble, remove, reassemble, re-screw, re-tape...