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The black tank flush inlet can be used with this system also (refer to the Black Tank Flush
section).
The Macerator Bypass Valve is located underneath the external hose storage box. This by-
pass will allow you to gravity dump the waste from the tanks straight down to a 3-inch sewer
hose connection under the trailer, in the event there is a problem with the macerator motor.
™ NOTE: The bypass valve also doubles as an emergency cutoff in the event of a
problem with the flex hose or dump connector. Closing the valve stops waste
flow out of the macerator pump and up to the flex hose, but will divert waste
to the main dump connector under the RV. Make sure the main dump gate
valve is closed until you are ready to empty the black tanks
To operate
1.
Attach a 3-inch sewer hose to the main dump connector under the trailer and to a sewer
outlet at a dump station.
2.
Open the desired black / gray (manual) drain valves, one at a time (black then gray).
3.
The macerator bypass valve will be pointing away from you and is attached to the
macerator pump. The valve location is by design to prevent accidentally engaging the
bypass when system is operating normally.
The bypass valve is normally open (handle is pulled OUT). To bypass the macerator,
4.
push the bypass valve IN (turns off flow from the macerator pump) allowing waste to
flow out of the dump connector under the trailer via gravity.
When finished, close the main dump gate valve under the trailer, along with the black
5.
/ gray dump valves. Disconnect the sewer hose from the main dump connector and at
the dump station.
Winterize the Macerator system (if so equipped)
Ensure all waste tanks are empty.
1.
2.
Pour RV antifreeze into the toilet and down into the black water tank.
™ NOTE: Use a container (bucket) for capturing system fluid.
3.
Make sure macerator bypass valve in pulled OUT. Turn the macerator pump ON.
4.
Run the pump until antifreeze begins to discharge
from the dump connector attached to the flex hose.
5.
Turn the macerator pump OFF.
Drain the flex hose by holding it at a sloped angle to
6.
drain excess water and return the hose to the storage
location.
7.
As an added safety measure, open the Macerator By-
pass valve and let it drain. Push the valve IN to by-
pass the macerator. The bypass valve may be either
at the utility center or under the RV.
8.
After draining make sure to pull the macerator by-
pass valve OUT again.
™ NOTE: The bypass valve for the macerator is
typically pointing back underneath the coach.
Handle position is normally pulled OUT (bypass
closed). The valve position is by design, so it can't
be activated accidentally when system is operat-
ing normally.
Section 8: Plumbing System
Table of Contents
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