Greetings,
So the exhaust on my laser set up is not doing what it should be doing. I have 3 fans with 3 90 degree angles and about 20 feet of that split seam duct pipe.
It was working great, then it failed because air started leaking through the 10 foot length of metal seamed pipe. I taped and sealed everything but after a few months, it leaks again.
My question is, would I be better off with just flexible metal pipe throughout the whole setup? I have a major fan at the bottom right after the Y split in my Legend, then a vertical run of about 6 feet with a fan in the middle to help push the air up and around the next bend, then one 90 and a 10 foot length, then another fan like the vertical one, and a quick bend up and out the roof. I have flexible duct between the engraver and first fan, and flexible from the 1st fan and the next fan but the rest is all the metal duct.