Best Practices for connecting hoses? - Router Forums
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post #1 of 18 (permalink) Old 12-12-2019, 04:16 PM Thread Starter
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Default Best Practices for connecting hoses?

I am setting up my dust collection and want to do it right the first time.

I can get my 4 inch hose to connect to my tools and my DC, nice tight seal around the outside, clamped on, those connections are great.

Less great: the PVC pipe or fittings. I can't get it to go over the pvc (blue thin sewer grade)

So I put it inside a coupling with construction adhesive. It seems to work. I stuck a piece of pipe out the end, turned on the machine and felt around the "caulked" joint to see if I felt any air escaping. I didn't.

I hesitate only because the tube is on the inside of piping, and I have it in my head, not sure why, that a flex tube should always seal tightly over the ends of any pipes, not go inside.

I have three options in my mind....

1. Continue with this method, being really diligent with enough sealant and taping the outside.
2. use these more expensive joint fittings
3. try again to get the hose around the pvc by stretching the wires somehow.

Thoughts?
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post #2 of 18 (permalink) Old 12-12-2019, 04:29 PM
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easier cheaper method found in the HVAC section of your BB or make your own...

.
...
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post #3 of 18 (permalink) Old 12-12-2019, 05:53 PM
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One of the neat things you can do with PVC is heat it and then you can expand it or shrink it.

Easiest way would be to make a cutout in a piece of wood the size you need (ID of the flex hose), heat the PVC and draw it through. This might take a couple of steps with the hole(s) you make depending on how much you need to shrink the PVC. For example, make a 4 1/2" hole as the first step, then a 4 1/4", then a 4"...

Round the inside edge of the hole to make the PVC fit better as you shrink it...

Then you can slip the hose over the newly make PVC end...

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post #4 of 18 (permalink) Old 12-12-2019, 06:04 PM Thread Starter
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[QUOTE=Stick486;2070167]easier cheaper method found in the HVAC section of your BB or make your own...

Excellent! Next stop!
I only tend to look in plumbing and electrical for my non-plumbing and non-electrical needs. Funny how the actual air movement section eludes me.
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post #5 of 18 (permalink) Old 12-12-2019, 06:12 PM
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It's a good idea when you use the metal pipe (which I also used) to seal all the joints with metal foil tape. It's usually sold in the same section where the ducting is.
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Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #6 of 18 (permalink) Old 12-12-2019, 07:51 PM
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How about something like this... https://www.amazon.com/POWERTEC-7012...6198191&sr=8-5

...only 6.99...

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post #7 of 18 (permalink) Old 12-12-2019, 08:10 PM
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metal connector...
3.99$...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #8 of 18 (permalink) Old 12-12-2019, 09:23 PM
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...even mo betta...

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post #9 of 18 (permalink) Old 12-12-2019, 11:05 PM
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Stick with one brand of connectors or you'll spend a ton and none will fit together. I went with Rockler for most parts. To seal connections, use the aluminum type duct tape, not "DUCK" tape.

Also, you can purchase a crimper for further adjust the metal connector Stick posted.
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post #10 of 18 (permalink) Old 12-12-2019, 11:07 PM
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Heck, don't forget your chip separator before the DC unit.

The more I do, the less I accomplish.
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