Hi I'm new to forum. New reefer 250 all set up and running but....I got delivered with the cabinet pack 2 pieces of hard but flexible plastic about 3 quarts inch wide and about 15 inch long but nothing in instructions where they go? They are grey and cabinet is black. ALSO......all videos/pics i can find has pipework going down opposite side to mine inside cabinet....mine comes down left hand side of cabinet into sump. How do the filter socks work?! Every time I've used them in past the inlet pipe goes into the sock but the inlet pipe is in a different chamber to the sock!!! Sorry it's long but need a bit o help