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Installation and maintenance instructions Ultimate 3 0020239568_03
7.8.1.3 External termination to gulley or hopper
Ø22mm
Ø 32mm
≤ 3 m
Best practice
7.8.1.4 Internal termination into combined sink
waste
Ø32mm
Ø22mm
≥ 3 m
100mm
Preferred option for external termination
7.8.1.5 External termination into soakaway
< 500 mm
100 mm
< 3
00 m
m
50
25
25
< 2
5
25
Ø12
Ø32mm
≤ 3 m
1
2
3
4
5
6
1
Ground (either/or)
2
Seal
3
Plastic tube,
100 mm diameter
4
Bottom of sealed tube
5
Limestone chippings
6
Hole depth 400 mm
minimum
Least preferred option, must not terminate in rain water drain
7.8.1.6 Internal termination downstream of sink
waste
100mm
Ø32mm
Ø22mm
≤ 3 m
Open end of pipe direct into gulley below ground level but
above water level
Susceptible to siphonage, must terminate in a gulley
7.8.1.7 External termination into rain water down
pipe
≤ 3 m
Ø22mm
Ø 32mm
NB only combined foul/rainwater drain
7.8.1.8 Additional methods of introducing air breaks
1
2
3
1
Air break
2
Using a tundish
3
Using a pipe
Summary of Contents for Ultimate 3
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