Here are the pics I promised. Sorry most of them are sideways, I'm not sure how to change that as this app insists on loading them that way. Anyways, in the pics you can see the return line I added to reduce the flow rate to the riser. I haven't found that I need it for this reason, however, I have used it when cleaning my keezer lines. You can see in the last pic the attachment I use to clean the keezer lines. I take off the gas and liquid ball locks from the pump Setup and attach two of the Brass and Ball lock converters I made. I then attach the ball lock from each keezer line to the ball lock post of the pump line. This allows me to recirculate through 2 lines at once which I feel is more thorough than just allowing blc to sit in the line for 15 minutes. Also, it allows me to clean the entire portion of the faucet/tap without disassembly. It has worked great and is a huge advantage in my view.