Review on 67-inch Double Ended Flexible Drain Brush with Nylon Cleaner and 2 PCS 8.2-inch Straw Cleaning Brush Set by Anthony Juat

Summary: I used this product to clean my air conditioner drain line. My air conditioners use 3/4" PVC hoses. The OEM brush has an additional 0.75" rigid wire hidden in the hose tube at the end of each brush. This made it impossible for me to run the brushes in 90*- Getting elbows through my PVC pipes I had to change the brush length to accommodate them No problem now but wish it was clear on the gauge Problem: The brushes fail on my 3/4" AC drain pipe system difficult to move around the 90° angle. It has to do with the design of the brushes. The bristles are connected to two strands of wire that twist like DNA (double helix). The bristles are located between the cable segments. The cable extends slightly into the hose about 0.75 inches. This increases the overall stiff portion of the brush to about 2.75 inches (small brush head) and was not advertised. To fix this I used wire cutters to trim the ends of each brush about 1 inch. The overall length of the brush is irrelevant when cleaning pipes. Then I folded the top of the cables down like the original design. With the new nozzle length, I was able to easily eliminate 90* elbows in my AC drain system! Photo 1 - Length of brush (as stated) Photo 2 - My modification Photo 3 - The result of the "sludge" coming out (water was only used to clean the bristles per pass)