2013 Cobalt 242 porcelain head issues

Dirk,
Here is what I found on another site for a 24SD, which should use the same systems.

Page 3-35 of the 24SD owner's manual describes how to operate your electric head....

Electrically Operated Head:
1. Open the inlet water seacock below the cabin
floor.

2. If overboard discharge is to be used, make sure
the “Y” valve is in the overboard position.

3. To charge the head, depress the foot pedal on
the lower left side of the bowl, and push the
flush button. Release the flush button after the
bowl is moistened, and then pump the floor
pedal 2-4 times to fill the bowl with water.

4. To flush, depress the foot pedal and push the
flush button at the same time - hold until all
waste is removed.

The marine toilet (head) allows you to hold the
waste in a holding tank. The waste can then be
pumped out through a deck plate fitting marked
“WASTE.”

The optional macerator system allows the
discharging of waste water directly overboard. For
additional operating information, refer to the
macerator operator’s manual. (I don't believe you have this)

Your Cobalt boat is equipped with an
electronically operated head (marine toilet) and
waste containment system. The head draws
seawater in through the hull to flush waste water
from the marine toilet.
The toilet pumps the waste water into a holding
tank.

Your boat is fitted with a waste holding tank. It is
emptied through the deck plate fitting marked
“WASTE.” Waste is pumped from the head through
a sanitary waste hose to the top portion of the tank.
A sanitary waste hose is attached to the bottom of
the tank, and runs to the dockside pump-out plate.
An overboard vent keeps the tank at atmospheric
pressure regardless of waste levels.