SECTION 8 – PLUMBING SYSTEM JAYCO TOWABLE TABLE OF CONTENTS
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5. Make sure the “fresh water tank drain” and “low point drains” are closed.
6. Close the fresh water tank shutoff valve “D” (if so equipped). Valve should be
located in the vicinity of the water pump. See Water Heater Bypass Diagram.
7. Open siphon valve “E” on the water pump with the clear hose attached and insert the
opposite end of the clear hose into a container of RV antifreeze solution. Valve
should be located in the vicinity of the water pump. See Water Heater Bypass section.
8. Turn the water pump ON. Antifreeze will be drawn into the water lines.
NOTE: In order to create a suction all low point drains must be closed.
9. Open the hot water faucets, including outside shower (if so equipped) until RV
antifreeze begins to flow continuously.
10. Close the hot water line faucets and outside shower and repeat with the cold water
line faucets. Hold open the lever on the toilet until antifreeze runs into the bowl.
When you are done adding RV antifreeze:
11. Turn the water pump OFF. Turn siphon valve “E” OFF. Remove the clear hose from
the container of RV antifreeze. Leave the water tank shutoff valve “D” closed to keep
antifreeze out of the fresh water tank. See Water Heater Bypass Diagram.
12. Pour 1 cup of RV antifreeze into the sink drain P-trap.
13. To prevent staining, wipe the RV antifreeze out of the sinks, shower (or tub) and
toilet using a soft, dry cloth.
NOTE: In the spring when flushing antifreeze out of the water lines make sure to
turn valve “D” (the fresh water tank shutoff) back ON.
BLACK WATER SYSTEM (IF SO EQUIPPED)
Certain camping trailer floor plans include a black water tank. For these floor plans, the
water from both the shower and toilet flow into the same (black water) holding tank. This
tank is located above floor underneath the shower (refer to Black Tank Drain & Black
Water Holding Tank).
The weight of the holding tank contents is not calculated into the RV cargo carrying
capacity (this extra weight would reduce your available cargo capacity). Traveling with
full holding tank(s) could possibly cause you to exceed the individual tire ratings and/or
the RV GAWR or RV GVWR. Potential damage to suspension components, such as
springs, tires and axles, could result.
If your RV holding tank(s) are located behind the axles, the weight of the full tank(s) will
reduce the hitch weight. Trailer sway and other handling difficulties can be the result of the
hitch weight being too light.
Dump the black water holding tank before traveling to avoid carrying unnecessary weight.
If you are dry camping and cannot immediately empty your holding tank, reduce your
vehicle speed until you reach a dumping station.
Before using the RV or after dumping the black water holding tank, always add the proper
amount of deodorant to the black water tank to prevent malodors and help break down
holding tank contents (unless winterizing).
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