TROUBLESHOOTING
In order to correctly identify if you have green water or cloudy/brown water, a settlement
test should be carried out.
Take a glass of pond water and allow to settle for a few hours. When the glass is stirred a
small layer of settled waste can be seen at the base of the glass. This indicates that you have
brown or cloudy water and that your UVC is working correctly. If there is no settlement it
indicates that you have green water and the UVC is not working correctly.
UVC leaks
•
Check that the UVC outlet nut and O-ring have been correctly assembled and that they are hand tight.
•
Check the hosetail connecter O-ring seal is fitted and aligned correctly on the end of the hosetail
fitting and that the inlet cover is hand tight.
•
PTFE tape may be needed to give a water tight seal and should be applied to the inlet or outlet hosetails.
•
Always secure the UVC inlet hose and outlet hose with a jubilee clip.
•
Insure that the UVC is installed on a flat and level base.
Cloudy/brown water
•
The flow rate / pond turnover is to high or to low. Check that you have correctly calculated the pond
volume and that pump flow rate is within limits. (see connecting your pump page 6)
•
The filter is not being supplied with water 24 hours a day. Do not turn off your pump or UVC.
Continuous running is needed to maintain a clear and healthy pond.
•
Your filter foam pads are insufficiently blocked to trap the fine waste. Treat with Interpet Clear Pond
treatment.
•
Do not clean filter foams or media until it is thoroughly blocked.
•
The water is extremely dirty, remove pond waste and leaves - carry out a partial water change.
•
Filter is incorrectly sized - refer to your filter performance and specification chart. Calculate the pond
volume.
•
The filter foams or media have not been positioned or replaced correctly, ensure that the foams/
media fit tightly within the filter.
8
9
TROUBLESHOOTING
Green water
•
Settlement test the water to ensure that there is no sediment suspended in the water. If there is,
follow the brown cloudy water trouble shooting guide.
•
In order to check that the UVC lamp is operating, view the translucent hose tail, a faint blue light
should be seen. This operation may need to be carried out at dusk as UVC lamps emit a dim blue
light under normal operation. Turning the lamp on and off may aid visual identification. (Ensure the
UVC lamp is not more than 6 months old).
•
The UVC may be working effectively but the filter foams are too clean and are unable to remove the
fine coagulated waste. Treat the pond with Interpet Clear Pond and do not clean the foams until the
foams are blocked.
•
The flow rate of the pump exceeds the maximum flow rate that the UVC is able to handle. Check the
UVC specification chart and reduce the pump flow rate if needed. It is possible to purchase a optional
Blagdon 1" flow control valve that may be fitted inline between the pump and the UVC to control the
flow rate. See getting to know your UVC diagram and parts codes.
•
The filter is too small for the pond, check your filter selection chart.
•
The UVC quartz sleeve is dirty or coated in lime scale. Gently remove the quartz sleeve and clean in
Blagdon Pond Pump Cleaner.
•
Follow all cloudy water trouble shooting points.
UVC light not illuminated
•
Check all fuses / RCD and electrical connections follow electrical installation (pages 7-8).
IMPORTANT
FAULTS - PROBLEMS PROCEDURE
Before returning your Minipond UVC to your dealer or contacting our Consumer Advice Department, please
carry out the following steps. This will solve most problems quickly and easily.
1.
Ensure electrical procedures have been followed fully. Check fuses and any cable connectors/switch
boxes.
2.
(a)
Follow maintenance procedure fully.
(b)
Check location and connecting your pump details
including flow rates.
(c)
Ensure that your pond volume and pump flow rate meet the maximum
pond size recommended for the filter model on the filter performance and specification chart.
(d)
Follow troubleshooting guide.
3.
If there is a mechanical breakdown of the UVC, return to the point of purchase for
inspection and advice (You will need proof of purchase).
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