Hunter 50CC - 10 Sanitar y Systems; Drains and Discharges; Sanitation Systems

Hu
nt
e
r
50
C
C
• Waste and Sanitation S
y
stems
1
0
.2
This section outlines the use, care, and maintenance o
f
y
our boat
’
s sanitar
y
s
y
stems, as well as, bil
g
e pumps and
waste s
y
stems.
Important: U.S. Coast Guard regulations require that boats
have a sanitation system on board to control pollution. Waste
is to be stored in a holding tank or other device so it can be
properly disposed of at a shore facility. Discharging this waste
overboard in U.S. lakes, rivers, bays, and sounds, and within
three miles of shore in international waters is prohibited. Check
with the Coast Guard regarding regulations in your area.
Sanitation S
y
stems
Your boat has a sanitation and bil
g
e s
y
stem that is the
c
uttin
g
ed
g
e of sanitation. The components are desi
g
ned
to
f
it the most demandin
g
environment.
S
ome o
f
the
f
ol-
lowin
g
components are listed in the Sanitation and Bil
g
e
S
ection
.
H
ead S
y
stems
D
r
ai
n
s
P
umps
H
oldin
g
Tan
k
Mace
r
a
t
o
r
s
S
hower
S
um
p
I
n t
hi
s sect
i
on, we w
ill
b
rea
k
t
h
e s
y
stems
d
own
i
nto a
f
ormat to help
y
ou better understand how
y
our s
y
stems
work and what it takes to maintain them. These s
y
stems
are further divided into four t
y
pes of dischar
g
e, Gra
y
water, Black water, Raw water, and
G
aseous dischar
g
es.
The
g
ra
y
water s
y
stem is comprised of waste that is not
c
ons
id
ere
d
raw sewa
g
e, w
hi
c
h
i
s cate
g
or
i
ze
d
as
Bl
ac
k
water. Raw water is the coolin
g
water that is taken in
throu
g
h pickups, etc. and dischar
g
ed back. Gaseous
dischar
g
es are
y
our exhaust, or fuel vents. Parts o
f
the sanitation s
y
stems are Drains
/
Dischar
g
es, Pumps,
H
oldin
g
Tanks / Sumps, the lines or hoses that feed or
d
ra
i
n t
h
ese s
y
stems, an
d
t
h
e components t
h
at ma
k
e up
the collective point
f
or waste, and the access point
f
or
sa
nit
a
ti
o
n.
10.1 Drains / Dischar
g
es
M
ost drains are in the
f
orm o
f
throu
g
h hulls or overboard
dischar
g
es. These fittin
g
s connect to a component, or
line, that is routed from a collection
p
oint or
p
oint of waste
o
ri
g
in. An
y
waste outlet that is
g
ravit
y
f
ed would be called
a drain. Likewise, an
y
thin
g
that was fed b
y
a pump would
b
e ca
ll
e
d
a
di
sc
h
ar
g
e.
•
•
•
•
•
•
Macerator discharg
e
C
ombined vanity
/galley drai
n
H
owever, waste
i
s not
li
m
i
te
d
to
liq
u
id
s, so, an exam
pl
e
mi
g
ht be the exhaust s
y
stem on
y
our en
g
ine or
g
enera-
tor. This s
y
stem disposes o
f
the
C
arbon Monoxide
g
as
t
h
rou
gh
t
h
e ex
h
aust s
y
stem
.
Overboard discharge (Opt
)
Fwd macerator discharg
e
V
anity sink drai
n
In this section, we will cover all the t
y
pes of drains and
dischar
g
es aboard
y
our boat,
g
ive
y
ou the details of how
the
y
work, and the in
f
ormation so
y
ou can maintain these
c
omponents.
1
0.1.1 Throu
g
h Hulls
Th
ere
h
as to
b
e an out
l
et or a wa
y
to
di
sc
h
ar
g
e t
h
e
li
q-
uid waste. These are called throu
g
h hulls, and the
y
are
o
penin
g
s in the hull or sides of
y
our boat with bronze
fittin
g
s. These are fitted to drain hoses and sized to be
c
ompatible with the s
y
stem that the
y
drain. At the end
of
this section,
y
ou will
f
ind illustrations showin
g
y
ou the
locations of
y
our throu
g
h hulls and their specific func-
tion. The hoses that
f
eed the throu
g
h hulls on
y
our boat
are looped over the
f
ittin
g
in order to prevent an
y
water
o
r waste from leakin
g
or drainin
g
back into
y
our boat.
Fi
g
. 10.1 and
f
i
g
. 10.2
g
ive
y
ou a look at some throu
g
h
hulls. Vents, also shown in Fi
g
. 10.2, are another t
y
pe o
f
throu
g
h hull and,
y
et another t
y
pe of waste disposal.