4
1.13 Never lift the filter using the cleaning handle. Always
carry the unit using two hands by firmly gripping the
rim of the lid (Fig. 5).
5
1.14 Do not operate your filter dry.
1.15 Do not block outlets whilst filter is in use.
1.16 Do not operate this product if the mains supply cable
has become damaged in any way. The supply cable
cannot be replaced. If the cable is damaged, the
electrical housing should be disposed of according to
local regulations.
1.17 Protect from frost if the unit is not to be run year-round.
(See the section, “Winter Care”).
1.18 Protect the filter from direct sunlight.
1.19 This product is not suitable for water temperatures
above 35ºC or below 0ºC.
1.20 only use accessories which have been designed for use
with this product. The use of any other accessories or
spares may invalidate your guarantee.
Installing this product in the garden is classed as
‘notifiable’ in the Regulations for England and Wales. The
Regulations require you to tell your local authority building
control department that you intend to install this product
before installation. Your local authority will let you know
how you can get your installation approved.
general guidance
2.1 The Technical Information Chart overleaf gives
general guidance on the specifications of the filter
& recommended pump. However, for best results
several other condition factors should be taken into
consideration, as these reduce the capabilities of the
filter.
• Pond depth: Hozelock Cyprio recommends a minimum
depth of 1.2m (4’) for Koi ponds. For a pond with an
average depth of less than 0.75m (2’ 6”) the Condition
Factor is + 25%. Shallow ponds are subject to full
penetration of sunlight, and warm up quickly. This
encourages algae growth.
• Location: Pond location determines the daily amount
of sunlight or shade a pond receives. Ponds exposed
to full sunshine throughout the day have a Condition
Factor of +25%.
• Climate: Climate affects water temperatures and fish
activity rate/feeding requirements. The more active
the fish, the greater the demands on the filtration
system. In hot climates (ie South Africa), the Condition
Factor is +35% In temperate climates (ie Southern
Europe), the Condition Factor is +15% In a Northern
European climate (ie most areas of great Britain), the
Condition Factor is +0%.
• EXAMPLE: You have a 2200 litre goldfish pond 0.75m
deep (Condition 25%). You live in London - a
Northern European climate (Condition 0%).
The pond is exposed to full sunlight (+25%). The
effective volume of your pond is therefore increased
by 50% (25% + 25%), and you would need to size your
equipment as though your pond held 3300 litres.
2.2 Flow Rate: For best results the pond volume should
pass through the Bioforce revolution every 1½ - 2½
hours, the fastest flow rate being recommended for
Koi ponds. Do not exceed the maximum flow rate, as
stated in the Technical Information Chart overleaf.
Correct flow rate is essential if you are to obtain clear
water. If your installation does not suffer from high
losses (ie long hose runs) it may be necessary to adjust
the flow to achieve the 1½ - 2½ hours turnover rate
using a flow control hose tap.
Small-diameter hose, unnecessarily long hose runs and
a high pumping lift (‘head’) can all considerably reduce
a pump’s output. We recommend choosing a pump
that will deliver the required flow against full static lift
(= vertical distance between pond surface and filter
inlet), plus 0.6m (2ft) to allow for friction losses in
hoses.
The object of filtration is to transfer waste material
from the pond into the filter, and so any pump used
as part of the package should be capable of handling
solids such as Hozelock Cyprio’s range of Aquaforce
pumps which have been specifically designed for ponds
in the size range covered by Bioforce revolution. The
pump should be positioned in the deepest part of the
pond to ensure the best circulation of water in the
pond and maximise its solids handling capability. The
pump should be installed on a flat level platform which
is raised 300mm off the bottom of the pond. This will
prevent the pump sucking dirt directly from the bottom
of the pond and will also ensure that sufficient water
remains in the pond in the event of accidental leakage
of pond water.
