Lines And Pipework - BWT P-PSC Notice D'installation Et Conseils D'utilisation

Once the liner is correctly positioned and snapped into the liner track, insert the vacuum pump to
remove the air between the walls and the liner and flatten the liner against the pool walls and base
before filling the pool with water:
- Detach a section of the liner (30 to 40 cm) around the midpoint of a wall
- Slide the tube of a vacuum pump between the liner and the pool wall. Block the liner in position
on either side of the tube using halves of wooden clothes pegs.
- Seal off the area around the tube or nozzle and any other section where air could be drawn in
between the liner and the pool wall (skimmer covers, pool fittings, filtration system pipes, panel
seams, etc.).
- Switch on the vacuum pump. An industrial vacuum cleaner or professional vacuum pump such
as QVAC is recommended. A household vacuum cleaner, even with the bag removed, would be
a lot less efficient. After a period of time (varies with the strength of the vacuum pump) the liner is
flattened against the walls of the pool and takes on its shape. Final positioning in the corners will
only be achieved with the pressure exerted by the water.
- Check that the liner is correctly positioned in the pool.
leave the vacuum PumP running while filling the Pool. should it Be
necessarY to stoP the vacuum PumP, for whatever reason, stoP filling
the Pool. restart filling once the vacuum PumP is switched Back on and
the liner is flattened against the Pool wall.
9.

LINES AND PIPEWORK

All the pool fittings should be connected to the pool machine room by means of buried pipes.
Use good quality PVC or Polyethylene pipe approved for installations subject to freezing and high
pressure (6 to 8 bar).
Before backfilling, connect pipes to the return fittings and skimmers. To avoid the formation of
airlocks within the lines, the suction and return lines should be laid on a slightly sloping bed of sand.
Similarly, to avoid damage during backfilling, rigid PVC or polyethylene pipes leading to the machine
room should not be laid horizontally out from the skimmer or return fitting, but should be laid directly
vertical down to the bottom of the excavation. Once they reach a stable surface they can be laid
horizontally on a bed of sand.
The suction and return lines should follow a constant even slope between the filter and the pool.
This will facilitate drainage of the lines in winter. To install a plastic union: wind Teflon tape around
the threading and then screw into the corresponding opening.
44/48
2020/05 - Indice de révision : B - Code : 37101
imPorTanT
PISCINES P-PSC