Hacksaw blades???  Another reason to check the archives.  I went
through this last summer and posted what I found. ON the type
that has the one central wing-nut, what one needs to do is to go
DOWN from the top (through the sink) to get a grip on the TOP of
the nut, then it is possible to unscrew the 'rusted-out' thumb screw
from the bottom.  I then replaced the screw with a stainless-steel
nut & bolt and sealed the bottom of it with washer and water proof
sealant, and it works fine.  Also remember to put some plumber's
anti-freeze down  the sink in the winter or you'll get a cracked trap.
Sawing the trap off is not necessary in my experience.   My full
'sink-trap' story is in the archives.  malcolm s

Davidson wrote:

> Volks,
> In case you haven't noticed yet, the small thumb screw at bottom center of
> the P-Trap under the sink is vulnerable to rusting out. When it does you
> will have a leak under your sink.  <<snip>>that seems less likely to rust with the
> screw off to the side and out of the water. With the Admiral you have to
> pop take the screw out and pop the bowl to drain it.
>
>