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Pre-treatment (drinking water)
Prefiltration is usually required to ensure that particulate matter does not shield
micro-organisms from the UV light. Sand filtration or 20 micron cartridge filtration
is the usual minimum. In some cases, particularly with surface water, finer filtration
may be necessary, or if cysts like Giardia or Cryptosporidium may be present. In
this case 1 micron filtration is required, not necessarily for the whole supply,
filtration for the drinking tap only may be practical.
Lamp Installation
Once the Steriflo
®
Treatment Chamber has been connected to the pipework, the
installation should be checked for water leaks.
Attach the “DO NOT LOOK AT LAMP” sticker in an obvious position on the
treatment chamber, check that the chamber is clean to ensure the sticker will
adhere correctly.
The Quartz Sleeve is pre-installed in the treatment chamber, and provided the
endcaps have not been disturbed or undone, is able to withstand well in excess of
the maximum operating pressures.
If the chamber test is successful, it is now time to insert the lamp.
DO NOT
INSERT THREE PIN POWER PLUG TO POWER OUTLET YET!
Expose the connection end of the lamp from its transport tube and protective
wrapping. The lamp connection socket is “keyed” to ensure correct alignment.
Carefully remove the tube fully from its transport tube, touching the lamp as little as
possible. Handle the lamp by the ends where possible. Wipe with clean cloth and
methylated spirits if fingerprints or dirt need removing.
Slide the lamp into the chamber, fit lamp connection socket and then fasten the
end washer into the endcap, with the screws provided.
Operation
Once all leak testing and lamp fitment has been completed, open valves and allow
water to fill the chamber. Connect three pin plug to outlet and switch on. The
“Mains On” Amber LED will be illuminated and the red alarm light will flash slowly.
Allow two minutes for the UV lamp to reach full intensity before starting water flow.
Full lamp performance for a new installation will be achieved in 24 hours. On a
new installation where no other form of sterilisation has been in constant usage,
we recommend flushing the pipework with a suitable sanitiser such as Steritank HP
at 100mg/L. This solution should be left in the piping for at least an hour and
preferably overnight.
The Steritank solution can be dosed to the water tank or if necessary added as a
shot dose to the bowl of any filter housing installed with the UV system and slowly
flushed into the piping.
If dosed to the water tank the Steritank HP will be left in the water as it is tasteless
and suitable for use in drinking water. If added as a shot dose it should be rinsed
out through a nearby tap.
Davey Water Products Limited can not accept responsibility for loss or
damage resulting from incorrect or unauthorised installations.
