Fresh Water and Sullage Hoses for Your Caravan / RV
The best hoses to buy for fresh water
drinking and grey water sullage disposal.
Includes handy hints and tips.
Food Grade Hose
Heavy Duty Food Grade
Water & Sullage Hoses
The water hose connects from mains pressure to the RV
and does not require 12V pump for water to flow.
There is a special drinking water (food grade)
hose you should use with your caravan, motorhome, rv
or camper trailer. Normal garden hose can give the
water a "plastic" taste. The drinking water hose is
usually a white hose. This hose should be used when
filling drinking water tanks installed in RV’s. The tank
fill inlet, usually with a lockable cap, is often
located on the side of the RV. An in-line water filter
can also be fitted to the incoming hose to filter water
further as people with sensitive stomachs can be
affected by different water from different areas.
There is a brand of water hose that is a ‘flat’ hose.
The advantage of a flat hose is that it can easily be
wound onto a flat hose reel (Multi-Reel) for storage.
The disadvantage of the flat hose is that it must be
fully unwound and laid out when connected to mains
pressure for the water to be able to flow freely.
Many travellers have suggested carrying a couple of
different lengths of drinking water hose (ie 2 x 10
metre lengths and 1 x 5 metre length). This gives
flexibility in choosing the appropriate combination at
any location if required. You may also like to carry an
addition length of sullage hose to give the same
flexibility. A plastic barbed joiner for the sullage
hose can be obtained from a hardware, garden irrigation
supply store or caravan accessory shop.
The sullage hose connects from the kitchen sink and
shower outlet under the RV and extends to the sullage
drain, normally located near the tap, when on a
caravan/trailer park site.
The best sullage hose has the convoluted outside
and the smooth inside (doesn't trap food particles).
Sullage hoses are a black colour.
These hoses can be purchased from your local caravan
accessory shop or hardware store.
Tips and Hints
Do not fill the tank too fast as escaping
air can push the water back out giving you the
impression that the tank(s) may be full when in fact
they are not. Another alternative is to have an air vent
or breather tube installed to allow any air to be
The tank fill inlet pipe can be fairly
small in diameter. To assist filling the tank you may wish
to make up a adaptor connection that can "click" on to your
regular hose which then allows you to attach a much
thinner short hose section. This smaller diameter
hose piece can then slide easily into the inlet pipe and
allow the excess air to escape around the thinner hose
back out the filler.
Another useful device is a regulator
which regulates the water pressure when connected to
mains. These regulators can be purchased as a separate
unit and are sometimes referred to as ‘in-line mains
pressure controller’ or ‘city water pressure
controller’. They are particularly useful when staying
at a location with mains water supply connected for some
time. Being connected to mains water pressure enables you
save your water tank supply for later use.
A tip for securing hoses after use is to
purchase some Velcro straps (at least two for each hose)
and secure them around the hoses. You can screw a U
bracket in the boot of your caravan or hatch to neatly
hang them on.
Another idea for storing your
water and sullage hoses is a product called ‘The
Hose Bag’ which is a small bag with handles in
which you place the hoses and as you insert the
hose it forms a circle within the bag. Just one
tip though, if you use brass fittings on the
hose then make sure they are not stowed next to
the fabric of the bag or you may wear a hole in