Best tool for descaling straight PVC pipe? If you have PVC, ABS or any other soft material pipe line to descale and it is straight or without multiple bends the 3-Chained Light Duty Chain Knocker is your go-to choice. This plumber's wet dream packs a lot of descaling power with the cost of flexibility that would be needed in tight bends. How does it perform compared to other chain knocker options? In comparison this 3-Chained option offers more descaling surface and speed with the cost of flexibility than the 2-Chained option. When comparing to the circular chain knockers, it is still more flexible but offers slightly less descaling speed. For slightly more flexibility with a cost of descaling speed we recommend 2-Chained option. For maximum flexibility, with the cost of descaling surface we recommend considering Mini Chain or the 1-Chained option. If you mostly have straight line with barely any bends, we highly recommend this 3-Chained option to speed things up. It is also good to think about Circular Chain Knockers in these situations, but they do lack flexibility even more. It is recommended to have at least one flexible option with you than the 3-Chained or Circular. So maybe have one 3-Chained, One Circular and one 1-Chained Knocker to be prepared for most situations. Perfect tool for PVC/ABS and other soft material pipe descaling Like all the other Light Duty Chains, this 3-Chained option does not have any kind of hard metal (carbide) tips like Medium or Heavy Duty Chain Knockers do. This minimizes the risk of damaging the pipe's interior, making them the ideal choice for cleaning & descaling tasks in PVC, ABS, PEX, Copper and other fragile/soft pipes.Light Duty Chains are also a great option when a pipe made from tougher material is in considerably rough condition (cracks etc) and you don't want to take any risks. So, if you want you can also use these chains in Cast Iron pipes as well. While we recommend this chain knocker for soft material pipes like PVC, please always check the overall condition of the pipe to avoid any damage. If you are unsure if the pipe will withstand the Light Duty Chain Knocker, please choose even more gentle option like Circular Light Duty Chain Knocker or Gentle Duty Brush. Available in following sizes: 50mm (2″) for flex shaft thicknesses of 6mm (¼″), 8mm (⁵⁄₁₆″), 10mm (⅜″) 75mm (3″) for flex shaft thicknesses of 6mm (¼″), 8mm (⁵⁄₁₆″), 10mm (⅜″) and 12mm (½″) 100mm (4″) for flex shaft thicknesses of 6mm (¼″), 8mm (⁵⁄₁₆″), 10mm (⅜″) and 12mm (½″) 150mm (6″) for flex shaft thicknesses of 8mm (⁵⁄₁₆″), 10mm (⅜″) and 12mm (½″) 200mm (8″) for flex shaft thicknesses of 8mm (⁵⁄₁₆″), 10mm (⅜″) and 12mm (½″) Chain thicknesses of 3.5mm & 4.0mm is selectable in some of these models.
