Chemical Cleaning undertaken monthly (continued)
1) Undertake a “Manual Clean Procedure” but leave the unit empty (do not refill).
2) Add water to the Chlorine Tank until ¾ full.
3) Add chlorine to the chlorine tank (see teaspoon amounts below) and use a mixing stick to stir
until dissolved:
2 Teaspoons
of Chlorine powder with 65%
available chlorine (700g / kg).
OR
3 Teaspoons
of Chlorine powder with 55%
available chlorine (550g / kg).
OR
4 Teaspoons of
Chlorine powder with 35%
available chlorine (350g / kg).
OR
6 Teaspoons
of Chlorine powder with 25%
available chlorine (250g / kg).
OR
100 Millilitres
of Liquid chlorine (Sodium
Hypochlorite) with 12% available chlorine.
4) Open
T5
(chlorine) to allow the
chlorine tank
to drain,
than close
T5.
5) Fill the SkyHydrant with water by opening
T1
&
T4
until water flows out of
T4
than close both
taps.
6) Move the Cleaning Handles back and forth a few times to mix the chlorine inside the unit
than leave to
soak for at least 2 hours
.
7) After soaking, undertake a “Manual Clean” to remove the chlorine solution.
8) The “Chemical Cleaning” is now complete. The unit can again be refilled water.
Chemical Cleaning using Citric Acid.
If high levels of Iron are present undertake periodic
chemical cleaning using 500 grams of Citric Acid instead of chlorine. Citric acid cleaning is
undertaken in addition to the regular chemical cleaning program using chlorine.
How the SkyHydrant works.
The SkyHydrant water purification unit requires no power to operate instead it relies on gravity water
pressure. Raw water flows through the unit with a water head pressure of between 2 metres and
maximum 4 metres (0.2 bar to 0.4 bar or 3 psi to 6 psi) to produce a typical flow rate of about 700 litres
of drinking water per hour (subject to the quality of source raw water).
There are many
ways of setting up
SkyHydrant water
purification plants.
A popular method
is to pump raw
water (using
mechanical or
hand pump) to a
1,000 liter header
tank on a 3 meter
high tank-stand
and allow the
water to gravity
feeding down
through the
SkyHydrant into a lower 1,000-liter drinking water tank located on a 1-meter high tank-stand.
The drinking water tank can be connected with taps or be connected with pipes for supplying drinking
water directly to houses or to a distribution network.
Never pump or connect mains water pressure directly to the SkyHydrant water purification unit without
using a suitable water pressure regulating or control device as excessive water pressure may damage
the filter fibres.
