Installation
8 .2 Below water line system layouts
WATER LINE
1 in./ 25 mm
or 1.5 in./38 mm
SEACOCK
10 Toilet with direct overboard discharge
Add vented loop here
if holding tank is
below water line.*
WATER LINE
1 in./ 25 mm
or 1.5 in./38 mm
SEACOCK
11 Toilet with holding tank discharge
*Caution! Hazard of Flooding
All vented loops should be installed a minimum of
8 in./20 cm above water line at full heel.
12
0.75 in./
19 mm
SEACOCK
VENT
FITTING
DISCHARGE
PUMP
VENT
FILTER
0.75 in./
19 mm
SEACOCK
1 in./25 mm or
1.5 in./38 mm ID
VENTED LOOP *
1 in./ 25 mm
or 1.5 in./38 mm ID
SANITATION HOSE
DECK
1 in./25 mm or 1.5 in./38 mm
DISCHARGE
ID VENTED LOOP *
HOLDING
TANK
(cut-away view)
0.5 in./ 13 mm ID
FRESH WATER LINE
0.75 in./ 19 mm ID
VENTED LOOP *
MACERATOR
TOILET
0.5 in./ 13 mm ID
FRESH WATER LINE
FROM
FRESH WATER SUPPLY
0.75 in./ 19 mm ID
RAW WATER LINE
0.75 in./ 19 mm ID
VENTED LOOP *
1 in./25 mm or
1.5 in./38 mm ID
SANITATION HOSE
MACERATOR
TOILET
FROM
FRESH WATER SUPPLY
0.75 in./ 19 mm ID
RAW WATER LINE
Macerator Toilet
EN