~tack or Building

Floor Level

Drain to Other Fixtures

Other Fixtures ' Building Drain to

Floor Level

Building Drain

1. (h) Inaccessible Cleanouts. For buildings with concrete floors (slabs) or with less than 36 inches of crawl space under the floor, or where a cleanout is not easily accessible, the cleanout for the building drain may be installed outside of the building but not more than five feet beyond the foundation wall.

   10.08: Examples 8 and 9

10.08: Example 8 10.08: Example 9

Inaccessible Cleanout at The Base of A Stack Building Drain Cleanout Installed Outside

Outside Grade

Outul e Clunou1fD r aa..,afSnck

Floor Level

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Outside Grade

Bui lding Drain

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Inside Underground

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1. (i) Direction of Flow. Every cleanout shall be installed so that the cleanout opens in the direction of the flow of the drainage line or at right angles thereto.
2. (j) Cleanout Size: Cleanouts shall be of the same nominal size as the pipes up to four inches and not less than four inches for larger piping.

3. (k) Cleanout Clearances. See 10.08: Example 10.

   1. 1. Large Pipe - 18 Inch Clearance: Cleanouts on three inch or larger pipes shall be so installed that there is a clearance of not less than 18 inches for the purpose of clearing stoppages.

   2. 2. Small Pipe - 12 Inch Clearance: Cleanouts smaller than three inches shall be so installed that there is a 12-inch clearance for the purpose of clearing stoppages.

      10.08: Example 10 - Cleanout Clearances

      NOTE

      M inimum 12" fo r pipe small er than 3" M inimum 18" fo r pipe 3" and la rger

4. (l) Cleanouts Shall Be Kept Uncovered and Accessible.

   1. 1. Cleanout plugs shall not be covered with cement, plaster, or any other permanent finishing material.
   2. 2. Where it is necessary to conceal a cleanout plug, a covering plate or access door shall be provided which will allow ready access to the plug for removal. See 10.08: Example 5.

5. (m) Cleanout Equivalent: The cleanout equivalent may be satisfied by one of the following methods:

   1. 1. a fixture trap that incorporate a union connection;
   2. 2. a fixture with an integral trap; or
   3. 3. roof drain covers that are readily removable without disturbing concealed rough piping.
6. (n) Connections to Cleanouts Prohibited. Cleanout openings shall not be used for the installation of any new or additional plumbing except where another end-cleanout of equal access and capacity is provided.

7. (o) Manholes for Large Pipes.

   1. 1. For underground and "dedicated system" piping that is over ten inches in diameter and is outside a building, manholes shall be provided and located at every change of size in diameter, alignment grade or elevation and at intervals of not more than 350 feet except when the total developed length of the drain is less than 150 feet, cleanouts may be installed at 75 intervals.
   2. 2. Manholes shall conform to current standards and engineering practices.