Insertion And Filling; Laying Connections - Graf CARAT XXL Instrucciones De Instalación / Montaje Y Mantenimiento

5.3

Insertion and filling

The tanks should be brought into the prepared trench
with a suitable device without any jolts.
Before the surround is filled the tank is filled with around
25 cm water, the surround (round gravel, max. grain
8/16mm) is then added in layers, max. 40 cm at a time,
up to the top edge of the tank and compressed. The
individual layers must be well compressed with a hand
tamper. Be careful to avoid damaging the tank when
compressing the gravel. Mechanical compression ma-
chines must never be used. The surround must be at
least 500 mm wide.
5.4

Laying connections

All connections should be fitted under the tank dome to
ensure that the maximum water level in the tank is below
the tank/tank dome connection.
Please note: When fitting the connections, please use
food-safe materials only (e.g. PE screw connections).
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5. Installation
Wasserstand
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