The Ontario Building Code | Distribution Pipes within Leaching Beds

8.7.2.2. Distribution pipes within Leaching Beds

(1) Sentence (2) applies to the design and constructionof a leaching bed with distribution pipes used within the leaching bed.

(2) The header line and distribution pipeswithin a leaching bed shall be designed and constructed so that they can be detected by,

(a) magnetic means,

(b) means of a 14 gauge TW solid copper light coloured plastic coated tracer wire, or

(c) other means of subsurface detection.

Note: On January 1, 2018, Subsection 8.7.2. of Division B of the Regulation is amended by adding the following Article: (See: O. Reg. 139/17, s. 59)

8.7.2.3. Leaching Chambers within Leaching Beds

(1) Leaching chambers are permitted for use in conjunction with an absorption trench, shallow buried trench, filter bed or Type A dispersal bed.

(2) Leaching chambers shall comply with the dimension requirements for either a Type I or Type II leaching chamber listed in Table 8.7.2.3.

Table 8.7.2.3.
Leaching Chamber Dimensions

Forming Part of Sentence 8.7.2.3.(2)

Item	Column 1 Type of Leaching Chamber	Column 2 Width, mm	Column 3 Height, mm
1.	Type I	380 to 410	280 to 305
2.	Type II	555 to 575	300 to 320

(3) Leaching chambers shall conform to the requirements of IAPMO PS 63, "Plastic Leaching Chambers".

(4) The header line and leaching chamberswithin a leaching bed shall be designed and constructed so that they can be detected by,

(a) magnetic means,

(b) means of a 14 gauge TW solid copper light coloured plastic coated tracer wire, or

(c) other means of subsurface detection.

8.7.3. Absorption Trench Construction