We purchased this sewer drain cleanout machine from Lowe's for $407.95 on May 25, 2004. We have only used the machine five times since then and had significant problems on three of those occasions. According to the literature, it cleans 4" lines up to 100'. What the literature does not say is the machine "eats" cables quicker than my cat consumes a raw shrimp. Replacement cables cost about $135. I always followed the instructions when using the machine. It worked fine on a drain clog 80' away the first time I used it. The second time for the same distance the cable kinked both inside the drum and inside the 4" sewer line at about 50'. Cobra replaced that cable at no cost. The third time we used the machine was for a short distance and it worked okay - I suspect because not more than 40' of cable was deployed. The fourth time for the 80' distance the cable again kinked; and Cobra was kind enought to replace the cable. What occurred each time was we had an overflowing sewer line. I had to find a Lowe's store that actually had a replacement cable in stock, make the drive (we live in a rural area), replace the darn thing, finish the job then complain to Cobra. When the replacement cable showed up I had to return it to Lowe's for a refund. If you have even been involved in trying to clear a main sewer line with people there needing to use a toilet or take a shower and go to work you can understand the frustration. When I used this new cable installed into the drum with TLC for the first time the other day it again kinked coming out and in the line. We believe the drum and subsequent in line kinking problem is caused by the cable construction. When I pay 400 bucks for something I expect it to work, correctly, the first time, every time - especially if I have the operating instructions in my hot little hand. I have asked Cobra to buy back this worthless piece of junk and have not received the courtesy of a reply, even if it is to say no. I am pursuing this with Lowe's Corporate because they are selling this inferior product. However, if you have ever dealt with Lowe's Corporate you know talking to someone who cares is a difficult task at best. I also noted this particular model is no longer on the Cobra web-site.