MAINTENANCE & CLEANING
Polymer wool and carbon cartridge
When the cartridge chamber fills with water and starts to overflow into the outlet chamber the cartridge
should be cleaned or replaced.
The Polymer wool pad may be washed a limited number of times before it starts to lose efficiency and
blocks rapidly.
The Carbon Foam pad contains activated carbon particles that remove colorants and chemical pollutants
from your pond water. After six weeks the activated carbon pad must be replaced as the carbon
becomes full with pollutants and will be unable to absorb more from the pond water.
Replacement packs of polymer wool and carbon foam pads will be available from your retailer and are
quick and easy to replace. (see diagram on page 8 and codes/descriptions on page 2)
Annual maintenance
Check for wear
Once a year you should dismantle your Midipond filter. Dismantle the filter examining all the parts for
wear or damage, replacing any parts show obvious signs of wear or damage. (see getting to know your
Midipond filter for replacement codes and parts descriptions on page 2).
Replacing foams
After prolonged use and cleaning the filter foams will become damaged. This can be identified by their
inability to return quickly into shape after cleaning.
Replacement of the foams is recommended.
Winter storage
The filter can be run year round if the pump flow is maintained, this is the best option. Alternatively in
winter the filter may be switched off. Follow annual maintenance procedure and store frost-free in the
house or garage until spring.
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 if you have a UVC model it is working correctly. If there is no settlement it
indicates that you have green water and the UVC is not working correctly.
Filter leaks
•
Check that the filter 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 filter inlet hose and outlet hose with a jubilee clip.
•
Insure that the filter 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 clean and healthy pond.
•
The filter foam pads are insufficiently blocked to trap the fine waste. Treat with Interpet Clear Pond
treatment.
•
Do not clean the foams until the filter foam chamber starts to overflow into the carbon wool chamber.
•
The water is extremely dirty, remove pond waste and leaves - carry out a partial water change.
•
Filter is incorrectly sized - refer to filter performance and specification chart. Calculate the pond
volume - see connecting to your pump page 6.
•
The filter foams have not been positioned or replaced correctly,ensure that the foams fit tightly within
the filter chamber.
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