Suburban Ace Hardware store in Aloha for donating all the hardware and pipe caps and to George Morlan Plumbing for donating the PVC and valves!
Update 2: Isaac writes and sends a photo:
The treadle pumps are coming along very well. I hope to finish them by next Wednesday. I've attached a picture of the pumps for the blog showing that all the pipe system has been glued in place and most of the treadle pedals (3) have been attached. Lowe's was generous in supplying me with whatever else I needed to get the pumps finished such as tubing, rods, angle iron and eye bolts along with some spray hose attachments. Home Depot has provided gift cards that will go to purchase hoses to put with the pumps. I had to buy my own O-rings through the mail. I wish to sincerely thank all the above stores that have given me ALL the parts that I needed.Update 3: Isaac sends the following photo of his finished pumps. He's now working to raise funds to cover shipping costs. Isaac writes that the Raleigh Hills Fred Meyer in Portland has donated funds to be applied towards the purchase of hoses.