OBC 2006 › Division B
7.4.9.
Version 0 — in force 31 December 2006
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- Edition
- OBC_2006
- Division
- B
- Provision
- 7.4.9.
- Version
- v0
(1) This Regulation comes into force on December 31, 2006.
Read directly from the regulation's own commencement section.
O. Reg. 350/06 · commencement 2.2.1.1(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
This looks wrong
Tell us what is wrong and we will verify & correct our mapping.
- Edition
- OBC_2006
- Division
- B
- Provision
- 7.4.9.
- Version
- v0
(1) This Regulation comes into force on December 31, 2006.
Read directly from the regulation's own commencement section.
O. Reg. 350/06 · commencement 2.2.1.1(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
Provenance
OBC 1997 · continues from 7.4.9. — Pro
Base · O. Reg. 350/06 · ext← current
Original — base regulation
OBC 2012 · continues as 7.4.9. — Pro
7.4.9. — Size of Drainage Pipes
Content not available for this version.
7.4.9.1. — No Reduction in Size
(1) Except as permitted in Sentence (3), no drainage pipe that is of minimum size required by this Part for the purpose for which it is installed shall be so connected as to drain to other drainage pipe of lesser size.
(2) Where a building drain connects to a stack through a wall or floor, the drain shall retain its full size through the wall or floor.
(3) A sanitary drainage pipe may be connected to a pre-engineered waste water heat recovery system that incorporates piping of a lesser size than required by Sentence (1) provided that it does not convey sewage,
(a) from a sanitary unit, or
(b) that contains solids.
Text · e-Laws consolidated snapshot
7.4.9.2. — Serving Water Closets
(1) The size of every drainage pipe that serves a water closet shall be at least 3 in.
(2) The size of every horizontal drainage pipe downstream of the third water closet fixture drain connection shall be at least 4 in.
(3) The size of every soil stack that serves more than 6 water closets shall be at least 4 in.
(4) The discharge pipe serving a macerating toilet shall be not less than 3/4 in. size with a hydraulic load of 4 fixture units.
Text · e-Laws consolidated snapshot
7.4.9.3. — Size of Fixture Outlet Pipes
(1) Except as provided in Sentence (2) the size of every fixture outlet pipe shall conform to Table 7.4.9.3.
(2) The part of the fixture outlet pipe that is common to 3 compartments of a sink shall be one size larger than the largest fixture outlet pipe of the compartments that it serves.
(3) Where clothes washers do not drain to a laundry tray, the trap inlet shall be fitted with a vertical standpipe that is not less than 600 mm long measured from the trap weir and the top of the standpipe shall terminate above the flood level rim of the clothes washer it serves.
Editor's note
The caption of Table 7.4.9.3. is filed in O. Reg. 350/06 in the singular form 'Forming Part of Sentence 7.4.9.3.(1) and 7.4.10.2.(1)'; this map reproduces the source as filed. The e-Laws consolidation pluralizes it to 'Forming Part of Sentences ...' to agree with the two sentence references. This wording difference was not enacted by an amending regulation.
Text · e-Laws consolidated snapshot
Column 1 | Column 2 | Column 3 |
Fixture | Minimum Size of Fixture Outlet Pipe, in. | Hydraulic Load, fixture units |
Autopsy table | 1 ½ | 2 |
Bathroom group | ||
(a) with flush tank | 6 | |
(b) with direct flush valve | 8 | |
Bathtub (with or without shower) | 1 ½ | 1 ½ |
Bath: foot, sitz or slab | 1 ½ | 1 ½ |
Bed pan washer | 3 | 6 |
Beer cabinet | 1 ½ | 1 ½ |
Bidet | 1 ¼ | 1 |
Chinese range | 1 ½ | 3 |
Clothes washer | ||
(a) domestic | N/A | 1 ½ with 1 ½ in. trap |
(b) commercial | N/A | 2 with 1 ½ in. trap |
Cup Sinks | 1 ¼ | 2 |
Dental unit or cuspidor | 1 ¼ | 1 |
Dishwasher | ||
(a) domestic | 1 ½ | 1 (no load if connected to garbage grinder or domestic sink) |
(b) commercial type | 2 | 3 |
Drinking fountain | 1 ¼ | 2 |
Fish tank or tray | 1 ½ | 12 |
Floor drain | 2 | 2 with 2 in. trap |
3 with 3 in. trap | ||
Garbage grinder, commercial type | 2 | 3 |
Icebox | 1 ¼ | 1 |
Laundry tray | ||
(a) single or double units or 2 single units with common trap | 1 ½ | 1 ½ |
(b) 3 compartments | 1 ½ | 2 |
Lavatory | ||
(a) barber or beauty parlor | 1 ½ | 1 ½ |
(b) dental | 1 ¼ | 1 |
(c) domestic type single, or 2 single with common trap | 1 ¼ | 1 with 1 ¼ in. trap 1 ½ with 1 ½ in. trap |
(d) multiple or industrial type | 1 ½ | 3 |
Macerating Toilet System for single bathroom | 4 | |
Potato Peeler | 2 | 3 |
Shower drain | ||
(a) from 1 head | 1 ½ | 1 ½ |
(b) from 2 or 3 heads | 2 | 3 |
(c) from 4 to 6 heads | 3 | 6 |
Sink | ||
(a) domestic and other small type with or without garbage grinders, single, double or 2 single with a common trap | 1 ½ | 1 ½ |
(b) other sinks | 1 ½ | 1 ½ with 1 ½ in. trap |
2 with 2 in. trap | ||
3 with 3 in. trap | ||
Urinal | ||
(a) pedestal, siphon jet or blowout type | 2 | 4 |
(b) stall, washout type | 2 | 2 |
(c) wall | ||
(i) washout type | 1 ½ | 1 ½ |
(ii) other types | 2 | 3 |
Water closet | ||
(a) with flush tank | 3 | 4 |
(b) with direct flush | 3 | 6 |
7.4.9.4. — Minimum Size of Building Drains and Sewers
(1) Every sanitary building drain and every sanitary building sewer shall be at least 4 in. size.
(2) Every storm building drain and every storm building sewer shall be at least 4 in. size.
Text · e-Laws consolidated snapshot
Provenance
OBC 1997 · continues from 7.4.9. — Pro
Base · O. Reg. 350/06 · ext← current
Original — base regulation
OBC 2012 · continues as 7.4.9. — Pro