Install Instructions
Table Of Contents
- About this Document
- Disclaimers
- Product Information
- Viega Manifolds
- Viega PureFlow Tubing
- Viega PureFlow Fittings
- Viega PureFlow System Design Considerations
- Water Service Installation
- Installing the ManaBloc
- Mounting the ManaBloc
- Installing Manifold Distribution Lines
- Installing the Viega PureFlow PEX Tubing System
- Fastening the Viega PureFlow System
- Installing Viega PureFlow Fittings
- Pressure Testing Viega PureFlow Systems
- System Disinfection
- Installer Checklist
- Limited Warranty
Water Service Installation
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IM-PF 724596 1021 PureFlow Water System (EN)
7 Water Service Installation
Viega PureFlow PEX tubing may be used underground and for water service
piping. When running lines underground, it is important to provide a stable,
continuous trench base to support the tubing.
Always allow sucient slack when tubing is laid in trenches. Snake the tubing
slightly side-to-side to provide for contraction due to temperature change.
Do not use blocking to support tubing. PEX tubing can be damaged by
contact with sharp objects. Ensure that trench bottom and ll do not
contain sharp rocks or other items. In good soil conditions tubing may be
placed directly on trench bottom.
In poor soil conditions (rocky, loose, etc.) the trench should be excavated
at least six inches below the tubing level and backlled with appropriate
material to provide a stable base (coarse sand, pea gravel or similar).
7.1 Below Grade and Service Line
Trench in good soil
Trench in bad soil