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post #1 of 37 Old 08-07-2018, 10:55 AM Thread Starter
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PVC pipe

Where is everyone getting their PVC pipe for dust collection? Also which schedule should I go with? Iím planning on going with 6Ē with some 4Ē drops.
My local hardware stores donít seem to carry 6Ē pvc pipe. Any online sites that are reputable?

Thank you in advance!


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post #2 of 37 Old 08-07-2018, 11:09 AM
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I think I used schedule 40 but I only have one short run of 4" PVC about 10' long so no real need for schedule 80. Both HD and Lowe's has it here in several sizes, including 6".

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post #3 of 37 Old 08-07-2018, 11:14 AM Thread Starter
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I think I used schedule 40 but I only have one short run of 4" PVC about 10' long so no real need for schedule 80. Both HD and Lowe's has it here in several sizes, including 6".



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Sounds good Iíll have to look around! Is it really necessary to ground the pvc? My shop is small and inside my garage.


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post #4 of 37 Old 08-07-2018, 11:41 AM
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Sounds good Iíll have to look around! Is it really necessary to ground the pvc? My shop is small and inside my garage.


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A hotly debated topic, that - and here's a good article on it: http://www.rockler.com/how-to/explod...tion-ductwork/

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post #5 of 37 Old 08-07-2018, 12:27 PM
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Sounds good Iíll have to look around! Is it really necessary to ground the pvc? My shop is small and inside my garage.


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I have a separate line going to the CNC and only use it when that's running but that line is grounded at the DC (per standard for CNC). I have the ability to ground the hose I move around to each tool but rarely use the ground. There's only been one or maybe two times that I recall getting any kind of shock and that was from the planer when I wanted to take the hose off while the DC was still running.

But I've read many times the lines should be grounded and as was said, it's a hotly debated topic.

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post #6 of 37 Old 08-07-2018, 12:34 PM
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I used 4" PVC sewer pipe. Thinner wall but still plenty stout for a vac line and le$$ than the heavier wall PVC.
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post #7 of 37 Old 08-07-2018, 12:41 PM Thread Starter
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I used 4" PVC sewer pipe. Thinner wall but still plenty stout for a vac line and le$$ than the heavier wall PVC.


So do you get more suction out of 6Ē or 4Ē? Or does it really matter what size?


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post #8 of 37 Old 08-07-2018, 12:51 PM
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So do you get more suction out of 6Ē or 4Ē? Or does it really matter what size?


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The size should be determined by the suction power of your vacuum. Small vac systems, smaller pipe, to keep the air moving fast enough to keep the dust & chips suspended in the air stream and moving.
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post #9 of 37 Old 08-07-2018, 01:02 PM Thread Starter
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The size should be determined by the suction power of your vacuum. Small vac systems, smaller pipe, to keep the air moving fast enough to keep the dust & chips suspended in the air stream and moving.


Letís say this one. What size pipe you think?
http://www.grizzly.com/products/2HP-...Series/G0548ZP


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post #10 of 37 Old 08-07-2018, 01:52 PM
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Take measures for static electricity. I built a cart from PVC and had to wipe the pieces with a damp cloth to get the "pipe dust" off.

A diamond is how coal reacts under pressure.
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post #11 of 37 Old 08-07-2018, 02:33 PM
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I used 4" PVC sewer pipe. Thinner wall but still plenty stout for a vac line and le$$ than the heavier wall PVC.
Shows what I remember about what I used; I just looked and I also used sewer pipe. It's been working like it should for over a year.

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post #12 of 37 Old 08-07-2018, 03:47 PM Thread Starter
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Would a Harbor Freight dust collector be good to buy or should a Grizzly dust collector be better?



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post #13 of 37 Old 08-07-2018, 05:32 PM
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Letís say this one. What size pipe you think?
http://www.grizzly.com/products/2HP-...Series/G0548ZP


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I would use whatever size the inlet is on the VAC
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post #14 of 37 Old 08-07-2018, 06:00 PM Thread Starter
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I would use whatever size the inlet is on the VAC


Ok sounds good thank you


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post #15 of 37 Old 08-07-2018, 07:52 PM
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Would a Harbor Freight dust collector be good to buy or should a Grizzly dust collector be better?

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The Grizzly may be a better unit but the HF unit is one of the few good deals they have. I bought mine with a coupon and paid like $175 in late 2016 but I know others have gotten even better deals. For our two-car garage shop and using one tool at a time it works great. Even better after dumping the 5 micron bag filter and going to a Wynn 0.5 micron filter.

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post #16 of 37 Old 08-07-2018, 08:11 PM Thread Starter
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The Grizzly may be a better unit but the HF unit is one of the few good deals they have. I bought mine with a coupon and paid like $175 in late 2016 but I know others have gotten even better deals. For our two-car garage shop and using one tool at a time it works great. Even better after dumping the 5 micron bag filter and going to a Wynn 0.5 micron filter.



David

Do you have a dust deputy? Also have a picture of your dust collection?


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post #17 of 37 Old 08-07-2018, 10:32 PM
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Do you have a dust deputy? Also have a picture of your dust collection?

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I don't have one but maybe one day I'll get around to that. It works pretty good like it is although I have a Laguna DS 16 separator with Thein baffle for my shop vac and it works so good I thought about doing something similar for the HF dust collector.

This photo sort of shows the unit and how it's run for the CNC. For the tablesaw, bandsaw, jointer, planer, drum sander, and miter saw I just move a second 20' hose and connect to each.

PVC pipe-shop-2-12-5-17.jpg

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post #18 of 37 Old 08-07-2018, 10:50 PM
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6" pipe you are going to need a bigger blower to get any benefit. For a home shop with a typical dust collector I would use the thin wall 4" sewer pipe. The heavier gauge pipe is so you can drive vehicles over it without crushing it in a shallow bury. Not needed for dust collection.
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post #19 of 37 Old 08-07-2018, 11:36 PM Thread Starter
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I don't have one but maybe one day I'll get around to that. It works pretty good like it is although I have a Laguna DS 16 separator with Thein baffle for my shop vac and it works so good I thought about doing something similar for the HF dust collector.



This photo sort of shows the unit and how it's run for the CNC. For the tablesaw, bandsaw, jointer, planer, drum sander, and miter saw I just move a second 20' hose and connect to each.



Attachment 364682



David


Awesome shop and thank you!


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post #20 of 37 Old 08-07-2018, 11:37 PM Thread Starter
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6" pipe you are going to need a bigger blower to get any benefit. For a home shop with a typical dust collector I would use the thin wall 4" sewer pipe. The heavier gauge pipe is so you can drive vehicles over it without crushing it in a shallow bury. Not needed for dust collection.


Awesome thank you is the schedule 80 the thin walled pvc?


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