I purchased a manufacturer accessory five-foot tip extension wand for my pressure washer last summer. It was chrome-plated with brass quick coupler fittings on each end. I was not concerned with the construction. After all, who could screw up a water pipe with quick couplers on each end? I only used the extension as needed and kept it hanging on the shop wall most of the time.
After three days (approximately 45 minutes of actual use) the tip discharge pattern started to narrow and quickly plugged. Removing the tip and tapping it on the driveway resulted in pieces of rust falling out. Using a sharpened brazing (brass) rod to probe the tip resulted in even more rust falling from it. Due to my use of irrigation water for pressure washing, I have installed a high-quality inlet filter for pump protection, and immediately had visions of the pump being ruined due to filter failure. An inspection of the filter revealed that it was clean and working correctly.
Visual inspection of the wand extension showed that it was almost completely plugged with rust. I called the manufacturer and was told that the cleaning solution I was using was probably corrosive. My question: "Why didn't the primary wand rust?"
I went to the store where I purchased the wand to exchange it. I tapped the replacement on the customer service counter, and a small amount of rust fell out. Inspection of all of the others in the store had the same result.
Using the rental department's tools, I unscrewed one of the fittings and cut a piece of Poly pipe that fit tightly into the pipe and was long enough to attach a fish wire. With a little wire-pulling lube I was able to line the pipe. After a few trial cuts, I was able to thread the fittings on the pipe without crushing the poly but with enough crush to create somewhat of a seal. I was not concerned with flow restriction as the pipe was sized a great deal larger than the tip for resistance to bending.
I would guess that plating the working surface at the same time as the exterior would be a simple solution, but I don't work in accounting. I am still using the extension without any further problems.
This entry was submitted by Jim Hepler and edited by Rob Spiegel.
Tell us your experiences with Monkey-designed products. Send stories to Rob Spiegel for Made by Monkeys.