So I just got my MoreBeer 809 (the high-flow one with the 815 impeller) delivered today, and it came with a repair parts list of all the necessary part numbers for a few different pumps, including the stainless 809-SS-HS-C.
So I'm wondering, if I were to order the stainless housing that comes with that particular model (part number 0809-0150-0000), would I be able to use it to replace my current polysulfone one?
Yes you can use the stainless housing on your pump. they all interchange.
Would I need any additional parts?
Yes you would also need the o-ring as they are slightly different sizes between the plastic and metal pumps.
Also, under the quantity column, it shows up as "4", where for both polysulfone housings (inline and center inlet), it is just "1". Is this just a typo, or am I actually required to order 4 of these things?
Quantity of 4 for the stainless housing??? no you only need one of that part number.....either yo got a parts sheet with a typo or possibly when it was printed the column was shifted for some reason...it should be Qty 4 for the Hex nut (Part # 8) below the stainless housing. if you want our most current parts sheet you can download it here: http://www.marchpump.com/site/files/966/112196/382493/524058/Pump_Manual.pdf
-Walter