Proper brush and way to clean flex pipe

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cparts

Member
Aug 7, 2017
52
Southwest Virginia
Hi,

I’m having trouble figuring what to do to clean this. Some threads are not clear about type of pipe.

Last year I burned about 1.5-2 tons through new 4” bio vent FLEX stainless 25’ in chimney liner.

I can’t really get a brush up through bottom because of the way it is set up.

What type of brush is used for 25’ flex?
Does it require a drill or is it more of a reaming type motion?
Any tips to avoid getting brush stuck?
Tips for coming from top?

Thanks
 
Soot eater on a drill from the bottom up. Just brush till you feel it hit the top. I’d get 9 rods if you have 25’.
 
I never saw the advantage of the rotary brush. Just requires another tool you need. A drill to make it work. Every time I brush my 20 to 25 ft rigid pipe the brush cleans it completely. And with the flex fiberglass piping it never gets stuck.
 
Try cleaning 4-5 stoves a day a
I never saw the advantage of the rotary brush. Just requires another tool you need. A drill to make it work. Every time I brush my 20 to 25 ft rigid pipe the brush cleans it completely. And with the flex fiberglass piping it never gets stuck.
Try cleaning 4-5 stoves a day and you’ll see the advantage. Also, the rotary system gets way more out of ribbed flex than you ever could with a manual brush and rod.
 
Try cleaning 4-5 stoves a day a

Try cleaning 4-5 stoves a day and you’ll see the advantage. Also, the rotary system gets way more out of ribbed flex than you ever could with a manual brush and rod.
Yeah I understand but I've never used ribbed flex. I've always used duravent smooth inside. Why would you ever have a ribbef vent except if you have to bend around corners?
 
Yeah I understand but I've never used ribbed flex. I've always used duravent smooth inside. Why would you ever have a ribbef vent except if you have to bend around corners?
Most lining jobs involve running around the damper. Plus, the Olympia forever flex is the cheapest way to line a chimney. If a customer wants a better pipe, we run duravent 4” hard pipe.