Stefania R Gilroy , CA January 22, 2018 Appliance: Model BOSCH DISHWASHER Hard water build up The Bosch dishwasher that came with the house needed a new filter assembly and soap dispenser door. While I was online ordering those necessary parts I also purchased two new spinning arms for the lower and upper since those both appeared to be partially clogged with hard water build up. I watched the video for the soap door just to make sure I put the spring back on in the right direction, the other parts just pop right into place, no tools needed at all for this repair. Easy peasy. Dishwasher works great again. Amazing what proper water spray and filtration will do. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes