This Whirlpool periscope vent extends to 77" and requires only 2.5" of clearance: http://www.homedepot.com/p/Whirlpool-29-77-in-In-the-Wall-Dryer-Vent-Periscope-4392892/202647858#.Ubp0F-e1FQg Here's some 4"-oval "skinny" ducting: http://www.homedepot.com/p/4-in-Oval-Skinny-Duct-Aluminum-Dryer-Vent-DAF1/203286070#.Udwnbz6DTpQ

It is possible the the problem can be traced to the fittings but based upon the description in Orouke's original post I suspect he has one of two problems, and more likely both. 1. Wrong tape- Teflon was first created by Dupont Chemical Corp. and the word "Teflon" is a registered proprietary trade name for PTFE (Polytetrafluoroethylene). It was originally package on white spools with a white cover ring. Due to copyright restrictions as other companies began producing PTFE tape they were not permitted to use the name Teflon so they simply labeled it PTFE Thread Tape. Dupont then argued that the white container was also a registered trade mark, so the other manufacturers were required to change the packaging slightly, thus we see blue spools with a white ring, red spools with a white ring, and recently I have seen white spools with a blue ring. All of these are single density PTFE tape. (The first clue is if you can buy the roll for $1 or less it is almost a certainty that it is single density tape. The triple density tape generally sells for about $3 or more, depending on the size of the tape and the length of the roll). Note-The PTFE tape commonly found in the hardware store is 1/2" wide whereas most plumbers prefer to use 3/4" or 1" wide tape, which is generally only available a plumbing or HVAC supply store. When double density PTFE tape first came on the scene it was also white, packed on a white spool and primarily only marketed to professional tradesmen through the plumbing or HVAC supply houses. Most plumbers quickly adopted it because it was quicker and easier to apply and made a much more reliable joint. Shortly thereafter many gas codes were amended to require the use of double density tape on gas joints. Once the codes were changed they began making the double density tape yellow so that the inspectors would have a visual indicator that the correct tape had been used, thus to this day the yellow double density tape is often labeled as "Gas Tape". As the PTFE tape industry evolved into more products they adopted a standardized color code. WHITE- Single density tape to be used as a thread sealant on NPT (National Pipe Taper) threads which are equal to or less than 3/8". YELLOW-Double density "Gas tape" suitable for NPT threads equal to or greater than 1/2" but not more than 2" Red- Triple density tape suitable for NPT threads equal to or greater than 1/2" but not more than 2". (NOTE-The package is a red spool with a red cover ring and plainly labeled 'triple density", but the tape itself appears as a pale pink color). GREEN TAPE- Listed as "OXY/MED tape"-certified oil free to be used on lines conveying oxygen and some specified medical gasses. COPPER TAPE- Contains copper granules and is certified as a mechanical thread lubricant but is not certified as a thread sealant. I suspect that even though orouke meant well by selecting a red roll, none the less, he mistakenly got a roll of single density tape on a red roll with a white cover ring. The second problem I suspect is that the joint is not tight enough. When tightening any NPT thread it requires the use of two wrenches. One wrench is used to hold the fixed fitting steady while the second wrench is used to screw the fittings together. When an NPT joint is properly tightened there should not be any more than 1-1/2 threads visible. I realize that many homeowners and novices are afraid that they will over torque the joint, but with more than 30 years experience I have only seen one copper female fitting fail from over tightening but i have seen hundreds leak because the installer was afraid to crank it up.

Hello Helpers, I have an external drain pipe that collects the rain water from gutter and drain it to the street. Not only it was broken by the tree roots, its shape was sort of deformed into an oval shape at the break point. As you can see in the attached pictures, I have digged deep till the point where the drain pipe makes an elbow turn. My questions: 1) I tried to fit the 3-inch diameter adapter into that break point, but due to the deformed oval shape, the adapter cannot fit into. This is a wild idea -- Maybe I can use the low heat of lighter to heat up around the PVC opening and re-shape the oval opening back into round opening? 2) Or do I have to dig deeper to cut off the Elbow, put in a new Elbow? I know this is probably the best solution, but just require more work and time. Thanks much!

The Home Depot website sucks, it's awful and seldom helpful. Master Flow 4 in. x 5 ft. Round Metal Duct Pipe $15.98 Specifications Dimensions: H 60 in, W 4 in, D 4 Duct Type4" Round Gauge 30 But thanks for helping. I'm going to order this from Grainger; Rigid Ducts: Steel, For 4 in Dia, 60 in Lg, 26 ga Material Thick It's $90 for 5 pieces, but the right stuff. I'll have a lifetime supply and still save $900 over the friendly heating companies.