4rain FLAT 1.500 L Manual De Instalación, Montaje Y Mantenimiento página 19

info@4rain.eu
www.4rain.eu
5.2.1 Location on a slope, embankment, etc.
The installation of the tank in the immediate vicinity
(< 5 m) of a slope, earth mound or embankment
(greater than 2 % gradient) requires a statically cal-
culated masonry retaining wall to take up the soil
pressure. The retaining wall must extend beyond the
tank dimensions by at least 500 mm in all directions
and be a minimum of 1000 mm away from the tank.
EN
5.2.2 Groundwater and cohesive (impermeable to water) soils (e.g. loamy soil)
The tanks may not be installed in groundwa-
ter/artesian water. Even if it is expected that
groundwater/artesian water occurs only occasional-
ly, this must be led off by a drainage facility.
The drainage line may have to end in a vertically
constructed DN 300 pipe in which a submersible
pressure pump is installed to pump out excess wa-
ter. The pump must be regularly controlled.
5.2.3 Installation next to trafficways
If the underground tanks are installed next to traffic-
ways the minimum distance from these must be at
least the depth of the installation pit (H).
5.2.4 Connection of several tanks
Several tanks can be connected with a connection
kit and DN 50 HT pipe sections. The connection kit
is comprised of four special DN 50 seals and four
DN 50 HT pipe sections, together with lubricant.
The individual tanks are connected to each other at
the top and bottom at the drilling position provided
(see figure). The openings for the connections are
drilled with a 50 mm diameter core drill. The special
DN 50 seals are inserted in the openings. In order to
simplify inserting the pipes into the seals the seal
and the end of the pipe section must be greased
Drilling positions
with the lubricant.
The tanks can be connected to each other with the
17 / 40