Dometic Holding Tanks
Note
Fasteners (lag bolts, screws, washers, etc .) and restraining straps are not supplied with
Dometic holding tank .
6
Hose Installation
6.1
Hose selection
Dometic holding tanks are pre-assembled with 38 mm (1 .5
in .) and 16 mm (0 .625 in .) ID hose connection fittings . If your
sanitation system uses hoses other than these sizes, you may
either use fitting adapters to convert from the Dometic fitting
sizes to your current hose, or install new hose to match the
Dometic tank fittings .
If installing new hose, Dometic OdorSafe
provides the best protection against hose odor permeation for
toilet and holding tank discharge lines, and is available in 38
mm (1 .5 in .) ID only . Dometic MaxFlex™ hose is available in all
the sizes that are listed in the Sanitation, Vent Hose Size Guide
(right), and provides high-quality odor-resistance .
6.2
Hose layout
6
Key to (fig.
, page 4)
Ref.
Description
A
complicated plumbing layout
B
simple plumbing layout
1
problem hose
2
holding tank
Diagram A indicates an incorrect installation with multiple hose runs that can retain trapped liquids
and cause hose odor permeation . Diagram B shows a simplified, highly efficient plumbing system
that can be achieved with Dometic's specially integrated holding tank system design .
Plus sanitation hose
®
Ref.
3
4
5
6
Tank Installaiton
Sanitation, Vent Hose Size
Guide
(fig .
5
, page 4)
Item
Description
38 mm (1 .5 in .) ID
1
sanitation hose
25 mm (1 in .) ID
2
sanitation hose
19 mm (0 .75 in .) ID
3
vent hose
16 mm (0 .625 in .) ID
4
vent hose
Description
macerator pump
seacock (overboard discharge)
wye valve
discharge pump
11