Technical Specifications
The Potapak 250 is a gravity – fed, fabric enhanced, slow sand packaged water treatment system, providing potable water from highly polluted raw water sources.
Potapak Specifications |
Potapak Performance |
Material |
molded polyethylene |
Wall thickness |
6 mm |
Diameter |
1380 mm |
Height |
1200 mm |
Filter Material |
polyester |
Filter area |
1.3 m3 |
Piping |
Black spiral reinforced hose |
Valves and Fittings |
u-pvx/Acetol |
|
Faecal coli reduction |
99% to 99.9% |
Turbidity reduction |
>90% |
Daily throughput |
12.5 m3 |
Maximum flow |
520 l/hr |
Inlet water head |
1.5 m required |
Head loss |
0 - 1 m |
Population served |
500 people at 25 litres per person per day |
|
Potapak units can make use of a variety of sand grades. Quantities are as follows:
|
grade |
Quantity |
Sand |
"coarse" |
0.6m³ per unit |
Gravel |
"pea" 3mm |
0.1m3 per unit |
|
20 – 50mm |
0.1m3 per unit |
Potapak Gravel Filter provides a simple and effective means of pre-treatment for the Potapak 250 when water turbidity regularly exceeds 10 NTU. It can be used to treat water for agricultural purposes, drip feed irrigation and livestock.
System Configuration
The number of gravel pre-filters required will be dependent upon the variability and conditions of the raw water.
Population
(Based on 25 litres per person per day) |
Number of gravel pre-filters according to turbidity: |
Number of Potapak filter units |
Output pf water
m3/day |
low |
medium |
high |
up to 1000 |
0 |
1 |
2 |
2 |
25 |
1000 to 2000 |
0 |
2 |
4 |
4 |
50 |
2000 to 3000 |
0 |
4 |
6 |
6 |
75 |
3000 to 4000 |
0 |
4 |
8 |
8 |
100 |
Note: Using the Potapak units in groups of at least 2, ensures that an adjacent unit will always be available for backflushing. |
Typical low turbidity waters -
well and borehole
rain water
partially treated water |
Typically high turbidity waters -
surface water generally
shallow well water
river and stream water
|
|
BACK TO THE TOP