Introduction; Installation; General - Vetus WWS Instrucciones De Instalación Y Manual Del Propietario

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  • MEXICANO, página 23
1

Introduction

These instructions apply to the Vetus rigid plastic waste water tanks
for grey water and black water.
When installing a waste water tank, the European Recreational Craft
Directive (RCD, 2013/53/EU) and any national legislation must be ob-
served. Use the ISO 8099 standard as a guide.
Grey water tank
- A grey water tank should only be used for collecting water from
the sink, shower, wash basin, air conditioning, etc..
- The capacity of a waste water tank can never be too large.
- Match the capacity to the amount of fresh water available; the
capacity of the water tank(s).
- Fit sink, shower, wash basin, etc. with a drain with sieve, so that
coarse waste, such as hair etc., will be less likely to enter the grey
water tank.
Black water tank
- A black water tank is used only for temporary collecting toilet
waste.
- The capacity of a waste water tank can never be too great.
- The capacity should be calculated using the amount of flushing
water (outside water) used by the toilet. Reckon on 7 to 14 litres
(1.5 to 3 Imp. Gal., 1.9 to 3.8 US Gal.) of black water per person
per day.
- Use only water-soluble toilet paper to prevent unnecessary
blockages. Sanitary towels and tampons in the toilet and black
water tank will certainly cause blockages.
Clearing a blockage is an unpleasant job, make sure you have a pair
of rubber gloves on board.
2

Installation

2 1

General

When choosing a place for the tank and for the deck filler cap, take
the following into account:
- The suction hose should be as short as possible, must go directly
down to the tank and be as straight as possible.
- The space in which the tank is placed should be properly venti-
lated.
- There must be sufficient free space available to perform mainte-
nance on the pump.
Position
• Several toilets may be connected to a single tank. Extra fittings are
also available.
• Position the tank as close as possible to the toilet to avoid dirty
water flowing back into the toilet from the tank when the boat
heels.
8
110115.05
Smell
Grey water tank
- Unpleasant odours will be produced in every grey water tank. Fit
the sink, shower, wash basin, etc., with an S-bend (siphon or stink
trap) and a plug.
Black water tank
- Unpleasant smells caused by faeces will be produced in every
blackwater tank. The use of sea water for flushing will increase the
smell. The algae in sea water also produce unpleasant smells.
- It is possible to add special additives to waste water tanks to re-
duce the smell, called tank deodorants. A simple way of reducing
the smell is by using washing soda, which cleans and sterilizes.
- Leaking hoses, hose fittings, tanks, tank covers, etc., can also cause
a smell nuisance. So carry out a regular check of the whole system.
For dimensions, see drawing on page 33. Tolerances of +/- 2% apply
to all tank dimensions!
Running dry of the pump is allowed. However, unnecessary running
dry will shorten the service life of both the motor and the diaphragm.
Always shut off all sea cocks when leaving the ship.
Obstructions in pressure and/or suction hose may be harmful to
pump and/or electric motor.
By using a fuse with the recommended amperage (6 A for 12
Volt and 4 A for 24 Volt) in the plus cable, the fuse will blow if
there are any blockages or when the outboard shut-off valve is
closed.
This will prevent damage to the pump or electric motor.
The height difference between the tank and the filler cap may
a maximum of 2 metres (6'8") (the maximum excess pressure in
the tank is 20 kPa ( 0.2 bar, 3 psi )!)
W
arning
n
ote
Waste water tank system

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