7
Pump suctions are hazardous and can trap and drown or disembowel bathers.
Do not use or operate pump, pool or spa if a suction outlet cover is missing,
broken, or loose. Follow the guidelines below for a pump installation which
minimises risk to users or pools and spas.
Entrapment Protection
The pump suction system must provide protection against hazard of suction
entrapment or hair entrapment/entanglement.
Testing and Certif ication
Suction outlet covers must have been tested by a nationally recognised
testing laboratory and found to comply with the latest AS1926.3 standard or
ASME/ANSI specification for Suction Fittings For Use in Swimming Pools,
Spas, Hot Tubs, and Whirlpool Bathtub Applications.
Outlets Per Pump
Provide at least two hydraulically balanced main drains, with covers, for each
swimming pool pump suction line. The centres of the main drains (suction
fittings) must be at least 800mm apart.
The system must be built so that it cannot operate with the pump drawing
water from only one main drain (that is, there must be at least two main drains
connected to the pump whenever it is running). However, if two main drains
run into a single suction line, the single suction line may be equipped with a
valve which will shut off both main drains from the pump.
More than one pump can be connected to a single suction line as long as the
requirements above are met.
Water Velocity
The maximum water velocity through any suction outlet must comply with
the latest AS1926.3 Standard or ASME/ANSI Specification for Suction
Fittings For Use in Swimming Pools, Spas, Hot Tubs, and Whirlpool Bathtub
Applications.
L300216_SilentFlo_OM_2012
Monday, 17 December 2012 1:32:22 PM
