Like many houses, our laundry set up is in the basement. It's not a room space and for whatever reason the electrical and piping has the washer and dryer on an inside wall towards the center of the house. This means a longer-than-you-might-like run for the dryer ductwork. When we moved in, the run up from the back of the dryer to the (mostly) horizontal run that headed outside was crunched by the shelfing above the washer and dryer. As part of trying to clean things up, I installed a periscope duct to run behind the shelves up to the horizontal run. For the most part it worked well enough for more than two decades (with the occasional partial disassembly to clean out built up lint.
In 2011, we replaced the washer and dryer that came with the house, and when we replaced the washer in 2024 we kept the (2011) dryer. In February of this year, we had the heating element go our on it. During the repair I found out there was more of a build up of lint in parts of the dryer than I imagined. So, in addition to trying to clean things out better, I replaced the ductwork from the periscope to the wall, cleaning up the connections and bends and using more rigid tubing. It's not like the ducts were full of lint, but I thought it helped.
Last week, the thermal switch went out. During this repair, the appliance guy noted that the seal on the lint screen was worn out and recommended replacing the screen. He also noted that the periscoping duct didn't afford enough airflow and constricted things at the point where the exhaust left the dryer. So this weekend, I spent the morning reworking that vertical run. The periscope was replaced by the same sort of rigid duct tubing used for the horizontal run, which required notching out part of the shelves. I also added a Hoomsun in-line duct lint trap as a secondary lint filtering system. I don't know if it will make much of a difference, but for the longer run, it seems like a reasonable idea.
With the periscoping duct I had things arranged so that I could separate two parts and pull they dryer out from the wall to access the back panel. In retrospect I could have done something similar between the lint trap and the downward ducting. Instead I went with a Tearalu DV-90 magnetic vent coupling system. The basic concept is pretty good (and the Reddit reviews were positive), but it was a bit of a pain getting the magnet to connect when you can't really get behind the unit and the flexible tubing didn't really collapse well without some awkward poking with a broom. We'll see how well it holds up over time...





