Installation

7
General Instructions
7. Remove the Valve Body Seals. These may be in the Valve Body Assembly or stuck on
the lips of the Drain Bell above or Outlet below.
8. If Valve Body Seal replacement is the only service being done, replace the old seals
with the new ones and reassemble in reverse order above. It works best to install the
new seals on the lips of the Drain Bell and Outlet rather that put them in the Valve
Body Assembly.
9. To replace the Valve Body Assembly, unscrew the Handle from the old Valve Body
Assembly and screw it on to the new one. The Valve Body Assembly needs to be
installed with the T&S logo visible from below. Install the new seals and assemble as in
step 8.
Clearing a clogged drain line thru a B-3990 Series waste drain
E orts should be made to clear clogged drain lines thru clean-out ports in the drain
system. Should it become necessary to clear a clog thru the waste drain passage, ac-
cess can be done in the following way:
1. Close the waste drain to prevent loosing any loose objects.
2. Remove the Snap-in Strainer.
3. Remove the Drain Guard by loosening the (2) Vandal Resistant screws with the
Spanner Bit provided (the screws only need to be loosened and not removed). Rotate
the Drain Guard so the Screws align with the notches in the Flange. Lift out the Drain
Guard. For safety reasons, never put hands or  ngers in the drain passage when
the Drain Guard is removed.
4. Perform the needed maintenance.
5. Close the waste drain and install the Drain Guard. Ensure the Drain Guard is installed
correctly and securely.
6. Install the Snap-in Strainer.