Otto Graf GmbH
Plastic Products
Tel. +49 7641 589-0
Fax +49 7641 589-50
export@graf.info
www.graf-water.com
Carl-Zeiss-Straße 2-6
DE-79331 Teningen, Germany

Frost protection

Frost protection

Water pipes which are located outside the building floor surface must, in principle, be fitted at a frost-free depth (generally 60 cm to 100 cm below ground level).

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