Fibreglass Sand Filter - Bianco Pumpz

Fibreglass
Sand Filter

Instruction manual
Safety precautions
Bianco Fibreglass Sand Filters
BIA-T21
BIA-T25
BIA-T32
The symbol together with one of the following words ‘Danger’ or ‘Warning’ indicates
the risk level deriving from failure to observe the prescribed safety precautions:
DANGER Warns that failure to observe the precautions involves a risk of damage to
persons and/or property.
WARNING Warns that failure to observe precautions involves a risk of damaging the filter
and/or plant.
1. General information.
These instructions are designed to ensure the correct installation and best use of our garden
pump.
If you have any doubts, please consult your specialist dealer.
By strictly following the instructions for installation and use of the filter, you will avoid the
possibility of damaging the filter or any other problems associated with misuse, for which we can
accept no responsibility.
2. Installation.
The filter should be located as close as possible to the pool as practical. Position the filter on a
stable, level foundation such as a concrete pad or paving. Position all equipment to provide ease
of access for future servicing, filter drainage, pump access and cooling.
Protect the filter and pump from weather and direct sunlight.
A new pool should be cleaned as well as possible prior to filling pool and operating filter.
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2. Filter assembly.
BIA-T21, 25. Undo the V clamp and remove the multi-port valve. Multi-port valve for BIA-T32 is
supplied separate to the filter tank.
Locate the clear plastic sand shield for use later.
The filter internals are stored inside the filter tank prior to shipment and comprise a collector hub
with collector tube, and laterals loose.
With the collector hub just inside the filter tank, screw each of the laterals into the collector hub.
After all the laterals are screwed into the collector hub, position the assembly into the centre
piece on the bottom of the filter tank.
To support the laterals and prevent breakage of the laterals during sand filling, fill the filter tank
with water to about half full before filling with sand.
Place the clear plastic sand shield over the top of the collector tube and pour the correct type and
quantity of sand into the filter tank. (refer technical data). Ensure that the sand is evenly
distributed around the collector tube and that the gasket area around the top of the filter area is
free of sand.
Remove the plastic sand shield keep for later use.
Install the multi-port valve o ring onto the top of the filter tank flange ensuring that the flange and
o ring are clean. Lubricate with a silicon based lubricant.
Assemble the multi-port valve onto the filter tank, ensuring that the collector tube inserts into the
base of the multi-port valve.
Position the multi-port valve so that the valve port labelled “PUMP” points toward the pump.
BIA-T21, 25. Install the V clamp assembly so that it engages the filter tank flange and multi-port
valve flange and tighten the two screws up evenly until there is a 6mm gap between the clamp
faces.
BIA-T32. Rotate the clamp ring clockwise until tight and the ring is flush with the valve.
.
3. Pipe work assembly.
If the pump and filter are located below the pool water level, it is required to fit isolating
valves in the pipe between pump and skimmer box, and in the return pipe from the filter to the
pool.
The filter uses barrel unions to facilitate pipe connections. One half of the barrel union is screwed
hand tight into the multi-port valve and seals on an O ring. The other half is glued to the PVC
pressure pipe and the barrel union is then hand tightened.
BIA-T21, 25. Waste barrel union incorporates a see-through outlet fitting with 1-1/2BSPM tail.
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A PVC valve socket can be screwed onto this fitting using Teflon thread tape and the other end of
the socket glued to PVC pressure pipe.
O rings and sealing surfaces must be clean.
Connect pipe from pump discharge to multi-port valve port labelled “PUMP”.
Connect pipe from pool return to multi-port valve port marked “RETURN”.
Connect pipe from waste to multi-port valve port marked “WASTE”.
4. Commissioning.
Hazardous pressures. Ensure that all clamps, fittings and connections are secure before
starting pump.
Never change multi-port valve settings or adjust clamps while the pump is operating or
equipment damage and personal injury may result.
Relieve all pressure from the system before undertaking any work on filter or pump.
Open valves and make sure pump is filled with water. Make sure pool water level is at least
50mm above bottom of skimmer opening.
Set multi-port valve to ‘BACKWASH’ position.
Start the pump with water going through filter to waste.
To prevent pump from running dry, be sure that the water level is above the bottom of skimmer
inlet. Add water to the pool if necessary to keep the skimmer box flooded while back-washing and
rinsing.
Continue on backwash until the water is clear, about 5 minutes.
Stop the pump and set multi-port valve to ‘RINSE’ position.
Run the pump for 1 minute.
If using Zelbrite repeat the above operation three times.
Stop the pump and set multi-port valve to ‘FILTER’ position.
Run the pump with the multi-port valve set to “FILTER” position and record the filter pressure
gauge reading as a reference.
For new pools, backwash once a day until pool water is clear.
Backwash when pressure gauge shows 5 to 7 psi (35 to 50kPa) higher than the pressure
recorded during commissioning.
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5. Multi-port valve positions.
FILTER Normal filtration and vacuuming, water passes through filter to pool.
RINSE For initial startup cleaning and sand bed leveling after backwash, water
goes through filter to waste.
RECIRCULATE Circulates water and bypasses filter.
BACKWASH Reverses flow for cleaning filter, water goes through filter to waste.
CLOSE Shuts off all flow to filter and pool. Pump must not be run in this position.
WINTER Valve ports are partially open for winter storage.
WASTE Lowers pool level, water bypasses filter and goes to waste.
6. Maintenance.
Wash outside of filter with a mild detergent and water. Rinse off with hose.
DO NOT use solvents to clean filter; solvents may cause damage.
Inspect the sand at least once a year to remove foreign material which has not been backwashed
out of the system.
When the sand bed gets hard on top, remove all the old sand and replace it with new sand or, if
the pressure gauge does not return to within 6 psi (40kPa) of clean filter pressure after backwashing,
it is time to replace the filter media.
Weekly check the filter pressure during operation. If the pressure is 5 to 7 psi (35 to 50 kPa)
higher than commissioned pressure, backwash the filter.
Except during hot weather with heavy skimmer loads operating the filter 6 to 12 hours per day
should be sufficient, except during hot weather.
Carefully monitor water chemical balance and maintain a pH of between 7.2 and 7.6 in the pool
water.
Liquid Temperature 4 0 C min 35 0 C max
Storage Temperature -10 0 C min 55 0 C max
Relative Humidity 95% max
MODEL Q
max
(l/min)
Dia
(mm)
Height
(mm)
Ports
(mm)
Filter
Area
(m2)
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Sand
(kg)
Zeolite
(kg)
6 Hour
Turnover
(litres)
Max
Pressure
(kPa)
BIA-T21 192 525 680 40 0.22 85 65 69120 350 43
BIA-T25 270 625 780 40 0.30 155 120 97200 350 43
Max
Water
Temp
(deg
C)
BIA-T32 420 800 1035 50 0.50 210 160 151200 350 43

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