I did not know how to remove the broken spray arm so when I muscled it out, the spray arm base broke. We ordered the replacement parts from appliance parts pros and received them within 2 days. I looked online to find out how to remove the spray arm base. I removed it be unscrewing the base, screwing the replacement base, and then snapping in the new spray arm. We tested the dishwasher and it worked just like it was new. Another new task learned and completed!!