Slow draining kitchen sink

[Ken Juul]

I've done the galley sink drain modification, but over the last 5 or so years crud has started to build up leading to an increasingly slow drain.  Any suggestions for cleaning it?  Clorox? Draino? something less caustic?  Not sure how chemical resistant the Marlon thru hulls are.

[Steve Sayian]

Ken,

Had a similar problem on my C-30 drains.

Tried snaking it, garden hose streams, etc.
Best thing was to disconnect the drains and manually clean it out.

[Ron Hill]

Ken : A 50% clorox mix does just fine.  I shut off the thru hull and only fill it to just below the drain fixture.  Let it sit over night and then I take a a suction pump and move the water from one sink to the other.  That flow of water seems to clean the "walls" of the PVC pipe.