- Mar 5, 2004
My 773 Turbo (now the S185) is a standard flow unit. There are some attachments that I would like to run that would perform better with the High Flow option and a couple that require high flow. What would it take to upgrade my machine to High Flow? Is it just a matter of changing the pump out? Is there additional plumbing needed? I saw a NEW high flow pump for a 873 model on eBay a couple of months ago for about $350. Does this sound about right for a high flow pump or should I expect much more?