My memory is that there is no lint trap you can clean.
There is a drain at the bottom right corner and you need to remove the bottom-front-cover to get to it.
I have been using my washer/dryer on-and-off for 5 years and I found this drain cleanout area to be relatively clean.
However, my washer sometimes develops a smell. However, upon closer examination it would appear, just like the black water tank, that when the gray water tank has a lot of "outgassing" then the fumes can leach thru the p-trap. This "smell" is especially noticeable if you turn your ceiling fan "on" and I can only assume that smell is stronger during this time, because the fan draws the fume more rapidly out of the tank. I.e., a p-trap is only so effective.
Splendide WD2100xc Back Flush
https://www.irv2.com/forums/f115/spl...sh-504109.html
This link is also informative:
https://wheeledhorizons.blogspot.com...de-2100xc.html