@zimmy69 Hoping this provides more clarity on what the air pump swap looked like (couldnt figure out how to attach pics in conversation). I’m def a visual learner so thought this could be helpful. Make sure your machine is off and unplugged before starting. Here’s what the original air pump looked like, only it had a metal brace over top that had to be removed: Step 1: Cut the black power cord on back. Step 2: Trace the two cords that were connected to this air pump to figure out which one goes to din rail and which one goes to Airpump shutoff switch. Step 3: Cut the power cord on your new air pump (in my case it was the GH Dual Diaphram). Inside you will see 3 wires - black (lead), white (neutral), green (ground). Expose a little wire on the black and white. Step 4: Connect the black wire from the NEW air pump to the EXISTING wire connected to the Airpump Shutoff switch. Connect the white wire from the NEW air pump to the EXISTING wire connected to the din rail. Add wire connectors/ cover safely and you’re done. (Optional) Step 5: Drill a hole so you can run the new air pump power cord from the Airpump Shutoff switch through the machine (I went down the original air tube slots and out the bottom because my GH will sit outside/ below the cabinet). Considerations: -Make sure your machine is completely unplugged before starting. -Identify where you want to put your new air pump and cut the factory power cord appropriately so you leave enough length. Hope this helped!