SeaLand DHT-L Series Holding Tank - Manual (Page 11)

11
Dometic Holding Tanks Tank Installaiton
6 Hose Installation
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
® Plus sanitation hose
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 .
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 .
6.1 Hose selection
6.2 Hose layout
Sanitation, Vent Hose Size
Guide
(fig . 5 , page 4)
Key to (fig. , page 4)
Item Description
1
38 mm (1 .5 in .) ID
sanitation hose
2
25 mm (1 in .) ID
sanitation hose
3
19 mm (0 .75 in .) ID
vent hose
4
16 mm (0 .625 in .) ID
vent hose
Ref. Description
A complicated plumbing layout
B simple plumbing layout
1 problem hose
2 holding tank
6
Note
Fasteners (lag bolts, screws, washers, etc .) and restraining straps are not supplied with
Dometic holding tank .
Ref. Description
3 macerator pump
4 seacock (overboard discharge)
5 wye valve
6 discharge pump