Downstream Bypass Assembly
Hurry up, only 1 item left in stock.
- Free Shipping on Orders $149+
- Order by 2pm Pacific, Mon–Thu, and it ships same day. Flat-rate shipping: $8.95 under $50, $12.95 under $149
- FREE local pickup at Oregon City shop
Dn-10 Ball Valve
Stainless Steel Quick Connects
General Pump Injector 2.1 or 2.3 options available
A manual downstream bypass puts a ball valve in a loop around the injector: turn it and water goes around the injector instead of through it, so the chemical draw stops with the turn of a handle and you get full flow for surface cleaning. Not sure whether you need the 2.1 or 2.3? Our downstream calculator picks the injector size from your machine and hose length. How a bypass compares to a drop stick and the remote-controlled FlowPro is covered in the complete downstreaming guide.
About Expert Power Wash
Expert Power Wash is a family-owned pressure washing equipment shop in Oregon City, OR, run by Tim and Kristina. Before we built equipment, we ran our own pressure washing business for more than ten years — so the parts and chemicals on our shelves are the ones we trust on real jobs.
Our storefront stocks thousands of parts, chemicals and supplies, most in-stock orders ship the same day, and when you call 503-403-6185 you talk to people who have run this gear.
Shipping & Pickup
Orders placed by 2pm Pacific, Monday–Thursday, ship the same day from Oregon City, OR. Orders placed after 2pm on Thursday, or Friday through Sunday, ship the following Monday. Flat-rate shipping is $8.95 on orders under $50 and $12.95 on orders from $50 to $148.99. Orders of $149 or more ship free within the lower 48 states — some large items have their own shipping rate, shown at checkout.
FREE local pickup at our Oregon City shop, Monday–Thursday 8am–4pm.
Returns
Unused items in their original packaging can be returned within 30 days of delivery. A 20% restocking fee applies, and some items — like chemicals and cut-to-length hose — can't be returned. See our Return Policy for details.

