Page 590 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

The City & Guilds Textbook: Plumbing Book 1

89 mm approximately hole in sink to accomodate the unit

Sink
Reversable plug
Rubber
washer
Retaining
plate Retaining ring
Flange Splashback
guard

Cutter ring
Rotor
Retaining
ring

Motor
flange
Motor
housing
Outlet (40 mm)

Motor

Gland nut
Electrical connections

p Figure 9.63 A waste disposal unit

Bathroom layout specifications

Sanitary appliances within a dwelling should be installed so that the minimum
amount of space is provided for each appliance for both personal use, and for
an adult to supervise the bathing and washing of children. British Standard
BS 6465–2:1996 Code of practice for space requirements for sanitary
appliances, recommends the minimum space required by each appliance for
adequate usage.

British Standard BS 6465–1:2006 Code of practice for the design of sanitary
facilities informs us that there must be a minimum number of appliances within
a dwelling based on the number of people occupying the property.

 Table 9.4 Minimum number of appliances within a dwelling based on the number of people
occupying the property

Sanitary appliance Number per dwelling Notes
WC 1 for up to 4 people There should be a washbasin in
2 for 5 or more people or adjacent to every WC in the
property
Washbasin 1
Bath or shower 1 for every 4 people
Kitchen sink 1

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