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Section 8: Plumbing System
4.
Open the "low point drains" by turning, then pulling the handles
up. They are installed at the lowest point of the water lines. A la-
bel is placed on the outside of the RV to indicate where the drains
are located. The drains will need to be operated from inside the
RV. Once the label is found on the exterior sidewall, the drains
will be found at a corresponding location in the interior.
5.
Drain the sink by removing the drain cap.
6.
Turn ON the water pump and allow it to run as needed.
If the RV water heater has bypass valves: Set them to the BYPASS configuration (refer
7.
to the Water Heater Bypass section).
Operate the toilet flush lever until water stops flowing.
8.
9.
Relieve the water pressure using the P&T valve BEFORE removing the water heater
drain plug. If there is any water pressure present, the water will spray out of the open-
ing when the drain plug is removed.
When you are finished draining the fresh water system, reverse these steps and dump the
grey and black water holding tanks. It is normal for some liquid to remain in the fresh water
tank after drainage procedure.
Sanitizing/Winterizing the Plumbing System (No
Utility Center)
Water Heater Bypass(2 Valves)
Most floor plans have a factory installed water
heater bypass that enables you to avoid filling the
water heater with RV antifreeze. Bypass valves
are typically located in close proximity to the wa-
ter heater. Outside utility centers (if so equipped)
operate differently than a factory installed bypass
system. Refer to the Outside Utility Center section
for details.
Operation
Normal Mode: operation allows water to flow into
the water heater. Both hot and cold bypass valve
handles should be pointed toward the water heater
connections.
Bypass Mode: operation diverts the flow of
water around the water heater keeping water
out of the water heater. Hot water bypass
valve handle (B) should point inline with
the hot water outlet line. Cold water bypass
valve handle (A) should point inline with the
cold water inlet line.
118
Low Point Drains
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