Drain Pipes With Hepvo Valve; Drain Pipes With P-Traps; Vents & Vent Pipes; Figure 64. Roof Vent - Tiffin Motorhomes VANLEIGH BEACON Owner's Manual

15 8
cleaning and maintenance
Clean the toilet regularly. DO NOT use chlorine (undiluted) or caustic chemicals in the
toilet system (i.e., laundry bleach or drain opening chemicals). These products damage the
seals in toilets and dump valves. For a sticky toilet ball valve, apply petroleum jelly; this will
provide waterproof lubrication without damaging the seals.

DRAIN PIPES WITH HEPVo VALVE

Your RV may be equipped with a HEPVO valve that prevents the escape of odors from your
waste system and eliminates the need for P-traps. The HEPVO valves are used underneath
some showers, as well as at the washing machine. The HEPVO valves work as inline P-traps,
and are used where there is not enough room to use a traditional P-Trap.
NOTE:
Remove the HEPVO before using a clean out tool.
DRAIN PIPES WITH P - TRAPS
The drain pipes may be equipped with a P-trap installed to help prevent odors from escap-
ing into the RV. During travel, water from the P-traps may spill and permit odors into the RV.
By adding water and using a RV approved deodorizing agent you will dissolve the contents
faster and will keep the drain lines and tanks clean and free flowing. These chemicals are
available at an RV supply store or your dealer.
VENTS & VENT PIPES
Another important part of this system is the vent pipes and vents that release air from the
gray and black water holding tanks. The exterior vent cap is attached to the roof and must
be kept clear of obstructions to perform as intended.
1 5 8
Plu M b ing sY sTe M s

Figure 64. Roof Vent

VA N L E I G H B E A c o N