Flushmate 501-B Series Owner'S Service Manual Download Page 4

Step 6. 

If the Tank continues to 

run-on, 

push down lightly on the Flush Valve Actuator. If the water stops running, it is an indication that

the Flush Valve Cartridge requires tightening (clockwise). If water still runs on while pushing down on the Actuator, the Flush Valve
Cartridge requires loosening (counter-clockwise).

NOTE: 

Adjust the Flush Valve Cartridge Assembly in quarter to half turn increments until the water stops running. Always turn the water

supply off for all adjustments. Flush Valve Cartridge turns the water off.

Step 7. 

If replacement of the Flush Valve Cartridge is necessary, follow the instructions in 

Step 5.

CONDITION: 

Weak or Sluggish Flush.

Step 1. 

Check the water pressure (20psi - 125psi recommended). If OK,

then check the Flush System by removing the Tank Cover and tripping the
Actuator. While the unit is flushing, gently raise the Actuator. Water should
flow freely and wash away any debris in the supply line and Vessel.

Step 2. 

Check the Air Inducer for sufficient air draw. The air inducer is

designed to draw air during the refill cycle. To test the Air Inducer, place a
small amount of water (2 to 3 drops) in the orifice of the air inducer cap
and flush the toilet. If the air inducer is functioning properly the water will
be drawn in. If not, it will need to be cleaned and tested again.

TO CLEAN AIR INDUCER: 

(Figures 3 & 4)

a) Turn off the water supply and trip the Actuator.
b) Unscrew the Air Inducer Cap, clean thoroughly and remove

any obstructions. Reassemble. (Hand tighten ONLY)

c) Turn on water supply. Wait for the Vessel to refill (30 to 60

seconds). Repeat 

Step 2

above. If the Air Inducer does not

function properly, replace the Upper Supply Assembly.

Step 3. 

Check the Flush Valve Cartridge for leaks. Turn the water supply off

and drain the Vessel by tripping the Actuator and holding it down until
completely drained. Next, pour a cup of water onto the Cartridge Housing
area as shown in 

Figure 5. 

Turn on the water supply. If a leak is detected

(a steady flow of bubbles from the center of the Cartridge Area), the
Cartridge should be replaced.

Step 4. 

Check Lower Supply. Turn the water off and relieve the Vessel

pressure by flushing the toilet. Remove the supply line connection to the
shank. Remove any obstruction in the supply shank screen. If necessary,
you can use a small brush to gently brush the screen. Reattach the supply
line to the supply shank and observe connections to assure no leakage.

IMPORTANT: 

If you are still experiencing a weak or sluggish flush after this

point, it is recommended you replace the entire lower supply group.

Step 5. 

Check the following:

1. water line pressure (20-125psi)
2. obstruction in the bowl trapway
3. obstruction in the drain
4. proper drain ventilation

Consult a professional for their recommendations if any of these
conditions exist. If the drain and drain vent are clear, and the flush has not
been improved, replace the Lower Supply Assembly.

FIGURE 3

FIGURE 4

FIGURE 5

Air Inducer Cap

Reviews: