8
110135.01
vetus®
Rigid waste water tanks for grey and for black water
Tank connections
Connect the tank with a good quality reinforced hose. Avoid
•
sharp bends and kinks or sagging in the hose.
Bracket the hose at not too far apart, regular points, to prevent
•
the hose sagging. Deposits will collect in these sags, causing
a blockage after time.
The reinforced hose should be an odour-proof waste water hose
and resistant to a limited under- and over-pressure of 0.3 bar
(0.3 kgf/cm
2
, 4 psi).
Vetus supplies a hose suitable for waste water.
Article Code: WWHOSE19, 19 mm (
3
⁄
4
”) internal diameter
WWHOSE25, 25 mm (1”) internal diameter
WWHOSE38, 38 mm (1
1
⁄
2
”) internal diameter
Specially for
black water tanks
, odour-proof waste water hose:
Article Code: SAHOSE19, 19 mm (
3
⁄
4
”) internal diameter
SAHOSE25, 25 mm (1”) internal diameter
SAHOSE38, 38 mm (1
1
⁄
2
”) internal diameter
Fit every hose connection with a good stainless steel hose
•
clip.
Install pump ‘10’ and hull outlet with valve ‘12’.
•
Install the suction hose(s) ‘17’ (ø
•
38 mm, 1
1
/
2
" dia.)
such
that neither the tank, pump or deck cap are subject to any
mechanical loads.
Fit the air-relief nipple ‘14’
•
as high up as possible above
the level of the top of the tank. Choose a place for the nipple
where rain or other outside water cannot enter.
If required, fit an odour filter ‘15’ between the air-relief pipe
•
and nipple.
Fit the air-relief pipe ‘18’
•
, internal diameter 19 mm (
3
/
4
") be-
tween the air-relief nipple and the tank. When viewed from the
tank, the air-relief pipe should run straight upwards.
Discharge pump
A non-priming waste water pump must be fitted lower than, or at
the same height as the underside of the tank.
A self-priming pump can be mounted at any height in relation to
the tank.
Install an air vent
‘11’
in the discharge pipe between pump and
hull outlet when the waste water tank is below the water line and
the hull outlet is also below the water line.
Check
Check the system for any leaks. Extraction pressure 0.2 bar
(3 psi).
Preparation for winter
The tank, pipes, pump, etc., should always be drained.
Never add anti-freeze to the tank or other parts of the waste
water system to protect against frost damage. Anti-freeze is
very poisonous!
Propylene
-based anti-freeze may be used.
Clean the tank according to the cleaning procedure.
Maintenance
Regularly check the air-relief nipple and clean its sieve if neces-
sary. Regularly check the hoses and hose connections for possi-
ble leaks and fit new hoses and/or hose clips when necessary.
Also check the tank for damage caused by abrasion. Replace a
damaged tank immediately.
At the end of the cruising season, carry out the cleaning and
sterilizing procedures as described under ‘Use’.
A tank and installation which is seriously polluted with algae can
be cleaned by thoroughly rinsing out the tank, pump and pipes
with chlorine.
Technical Data
Type
: BTANK25C
Capacity
: 25 litres*), 5.5 Imp. gal.*), 6.6 US gal.*)
Weight
: 4.0 kgs*), 8.8 lbs*)
Wall thickness : 7 mm ± 1.5 mm (
9
/
32
" ±
1
/
16
")
Max. Pressure : 30 kPa (0.3 bar, 4 psi)
Material
: Polyethylene
*) Nominal values are given for capacity and weight. Slight de-
viations are possible.
Fittings supplied
for extraction hose (with extraction pipe) : ø 38 mm (1
1
/
2
")
for ventilation
: ø 19 mm (
3
/
4
")
for drainage
: ø 38 mm (1
1
/
2
")
