mock":3omfm3rz said:
So if i cut a bend in half and join back up with a Drainage Coupler with Central Stop for Joining Sections would that be ok ??
And regarding the static electricity issue i have seen a video showing how to do it would you recommend ??
Just had a little look i can't cut the bend in half to add a coupler and the bends are 87 degree on a 6 inch pipe ??
Personally I would avoid 90 deg bends completely. I would use a 45 on the vertical, a 45 on the horizontal and a short piece joining the two together. It will be a more gentle control of the airflow rather than the sudden bend of the 90 deg bend.
I know it's a different application, but with my flue issue some years back the gas boys tried a few combinations to get it working properly.
All the trouble was due to neighbours building an extension too close :evil: So when we had the boiler replaced the old flue location was no good. So they tried a 90 bend to get it vertical, that didn't work. Then it was the two 45 bends , that worked a lot better but still wasn't perfect. In the end they used a "twin flue" and everything was bang on. Bloody expensive. But the information stuck with me.
Regarding the static I really don't know, I was just wondering if you were doing anything about it. It seemed to be quite a concern with some people from what I've read when researching dust extraction.
I understand how it works, but whether or not it really is a big issue from the point of explosion and fire in a hobby/home workshop I'm not sure. The commercial shops I've been in use steel ducting, I guess rendering the issue nil.
In some literature I read, one guy makes out it couldn't happen due to the wood moisture content rendering it too wet for an explosion. He didn't say anything about man made materials, mdf, etc, which I guess must be really dry.
Besides the fire/explosion issue we all know a static shock can make you jump. I wonder if this should occur could it lead into another kind of accident when using one of the power tools.
I really don't believe there will be enough static electricity created to cause an electrocution problem, if that should become a concern, but there's a lot of people doing different things to try and control the static issue.
My only personal experience with static and plastic ducts/pipework, was with me crimping some lugs onto some cable for a site engineer at a chemical company in Newport, as a favour.
I obviously asked what it was for and he told me. Their situation is quite different though due to the nature of the materials they are pumping/moving through the system.
Other than some of the points raised what you're doing is looking good. Good luck
