2-4
3-4
Before filling filters with sand or other filtration elements, it is advisable to check the internal
collectors to make sure that they have not been damaged during transport or installation.
Afterwards, fill the filters with water and make hydraulic test. Thus, you will make sure that there is
no leak and that the equipment works properly.
Then stop the pumps, open each filter's lid (the filter must not be emptied without opening the lid,
as it could collapse) and empty half the water that each filter contains. Then, start filling the filter
with sand or other filtration elements, taking into account that first of all you must put gravel up to
the collector arms (10 cm approx.)
This must be done very carefully in order to avoid any damage in the lower components of the
filter. When the filter is being filled with sand, this must be carefully spread over the surface.
Once the filter is full with the filtration elements clean the lid and the inner part of the manhole.
This will prevent any debris and particles of sand affecting the seal of the joint.
Introduce the lid in the manhole, leaving it leveled and centered. The lid must be supported by
the handle, as this will avoid that it could fall into the tank and damage any of its parts.
Put the bridge in the position shown and tighten manually the wheel.
To achieve a proper seal, you do not have to tighten excessively the wheel, as this could damage
the lid. The pressure itself will improve the seal.
When the filter is under pressure, it is normal that wheel and bridge remain separated. You must
not tighten the wheel again when the filter is under pressure, because when the pumps stop, the
lid could be damaged or blocked.
Once the filter has been completely filled with water, start the performance of installation,
venting manually to eliminate all the air that could be inside the filter, as the presence of air
impairs the filter performance.
If a vacuum forms in the filters, it is necessary to install double effect suction cups, these will also
act as automatic air purifiers and would avoid that the tank could collapse.
After this, the filter has been ready for working process.
1.1)
It is acceptable to place the filters under the water level.
However if vacuum occurs in the installation, suction cups must be installed in the lids to avoid that
depression could collapse the filter's tanks.
Filters must be situated so that their bases are perfectly level and completely supported by the floor.
The location must be of appropriate size to allow maintenance periodic overhauls and other
w o r k . Additionally the room must provide a drain to allow, in case of accident, evacuation of water
flowing from any tube, filter, pump, etc. this will avoid risk of damages in the electrical installations
(pumps, electric panels, etc.)
1.2)
The manometer panel had been installed in the filter. In pools filters, the usual pressures when the
filter is clean are:
2
·
Inlet pressure: 0.8-1 Kg/cm .
2
·
Outlet pressure: 0.4-0.6 Kg/cm .
2
When the differential pressure between the two manometers is 1 Kg/cm or higher, backwash
must be carried out.
Filters location.
Manometers.
INSTALLATION
STARTING
INNER PART OF
MANHOLE
HANDLE
BRIDGE
WHEEL
LID
1) Filter installation
Filters are delivered properly packed and ready in order to
facilitate unloading and transport using fork-lift truck,
crane, etc. It is very important to make sure that the filters
have not suffered bumps during transport.
To obtain a correct filter installation, the following stages must
be observed:
·
Install filters in their final location.
·
Install correctly the butterfly valves in the filters.
·
To connect with the flange of the filter, use PN1.6MPa or
Class E 15bar PVC pipe.
·
Install butterfly valves supports and regulate them correctly
(height, etc.)
·
Connect butterfly valves with the pipe of the pumps, return
pipes and drain.
·
Check the inner parts of each filter (collectors, top
diffusers).
·
Fill the filters with water.
·
Empty half the water and add the filtration element
(gravel, sand and/or anthracite), etc.
Instrument Panel installation:
·
Before running the filter, drill a Φ11.4 diameter hole in the
filter's return pipe and drain that connects to the water
inlet and outlet.(Figure 1, Figure 2)
·
Tap a 1/4" thread to the hole with Teflon tape. (Figure 3,
Figure 4)
·
Twine the connection head with Teflon tape, fix to 1/4"
thread and connect to the direct head and the valve of
the panel.(Figure 5, Figure 6, Figure 7)
Caution:
·
Tap with PN1.6Mpa or Class E 15bar PVC pipe.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
INLET
OUTLET
