Building Code

Disclaimer

This web site has a number of downloads available in the Adobe Acrobat Reader (PDF) format.  Click on the logo below to download the Reader software directly from the Acrobat website.

Purpose & Contact Information	Frequently Asked Questions (FAQs)
Applications & Instructions	Ordinances & Other Resources
Related Links	News & Events

(Click here to view an Adobe Acrobat Reader version of this document.)

401. Follow 1998 Illinois State Plumbing Code or latest edition and the following amendments.

402. Two inch cleanout is acceptable under the kitchen sink or below the floor; in the basement or crawl space.

403. Crawl spaces may drain towards the basement; with a hole in the wall or a depression in the foundation wall and shall not affect the structural integrity of the wall.

404. All plastic and fiberglass laundry tubs shall be fastened to a wall and/or floor in such a manner as to make them secured.

405. Any plumbing fixture that is installed below grade must be discharged to a gas tight overhead sewer (ejector pit) or gravity if proper pitch is maintained to the septic system.

406. All water supply and distribution lines shall be of type L or M copper for above ground and type K copper for underground.

407. The rough plumbing shall be fully approved; in writing, prior to any insulation being installed.

408. All future plumbing fixtures must have the waste and vent completed for the rough inspection, with all waste openings capped or plugged gas tight.

409. All handheld showers shall have a 1016 ASSE antiscald valve and dual check.

410. A floor drain shall be required in the basement discharging to an ejector pit and piped to the sanitary sewer as per Section 890.1370.

411. Water Line Pipe Sizing - size water line in the basement according to the Water Service Units (W.S.U.) listed in the Illinois State Plumbing Code Section 890.1210B.

412. Drain down fittings at house side of water meter is required. Anti-siphon device is required on boiler drain for drain down. (drain down valve shall be before the second shutoff valve).

413. Anti scald valves in all tubs, showers and tub/shower combinations must be set at 115 F max. DO NOT USE HOT WATER HEATER TO SET VALVES.

414. Access panels for whirlpool motor repairs shall be 14"H by 14"W or as per manufacturer’s specifications.

415. Stud guards are required on all waste vent and water pipes with less than 1 ½ inch clearance behind rough wall.

416. There shall be no plumbing rough inspections until the HVAC has been completed or at the discretion of the building or plumbing inspector.

417. All water and sewer contractors shall be licensed, bonded and registered, including a State Plumbers License.

418. A homeowner who submits a permit application showing that the plumbing is being done by "owner" or "self" shall have no one else perform the work .

419. All permit applications shall have attached a "letter of intent" from the plumbing contractor. If during construction the contractor changes; a "letter of release" shall be submitted by the permitted-contractor and all work will be stopped until Will County Land Use receives this letter.

420. All gas piping shall be tested, sized and installed as per the adopted codes, rules and regulations herein.

421. Air chambers are required to be installed on all fixture units.

422. A safe pan is required to be installed under all hot water heaters, washing machines, furnaces with air conditioners, plumbing fixtures, appurtenances and appliances used to receive or discharge sanitary wastes or other fluids shall be connected to a properly installed drainage system when installed over a habitable space.