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Plumbing Information
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Amendment to the lower gwynedd township plumbing code: Ordinance No. 508

On August 23, 2016 the Lower Gwynedd Township Board of Supervisors amended the Township Plumbing code with the following ordinance:

 AN ORDINANCE OF LOWER GWYNEDD TOWNSHIP, MONTGOMERY COUNTY, COMMONWEALTH OF PENNSYLVANIA, AMENDING CERTAIN PROVISIONS OF THE CODE OF LOWER GWYNEDD TOWNSHIP; SPECIFICALLY AMENDING THE PLUMBING CODE, CHAPTER 1444, TO REPEAL CERTAIN TECHNICAL MODIFICATIONS OF THE INTERNATIONAL PLUMBING CODE TO REMOVE REQUIREMENTS RELATED TO THE USE OF CAST-IRON OR COPPER PIPING UNDERGROUND WITHIN A BUILDING; REPEALING ALL INCONSISTENT ORDINANCES OR PARTS THEREOF; PROVIDING A SEVERABILITY CLAUSE; AND PROVIDING AN EFFECTIVE DATE.

*The online code will be updated shortly to reflect this change.*

A few Items from Lower Gwynedd Township Plumbing Code
Adopted January 1996

  • PVC pipe may only be used for drainage, waste and vent lines above ground.
  • All drainage, waste, vent and water lines will be tested by either air pressure or water.
  • All washing machine and shower waster line will be at least two inches.
  • No "S" traps will be permitted.
Trap SizeFixture DrainSlopeDistance
1 1/4" 1 1/4" 1/4" 3' 1/2"
1 1/4" 1 1/2" 1/4" 5'
1 1/2" 1 1/2" 1/4" 5'
1 1/2" 2" 1/4" 8'
2" 2" 1/4" 6'
3" 3" 1/8" 10'
4" 4" 1/8" 12'

Drilling and Notching

Notches in the top or bottom of the joists shall not exceed one-sixth the depth of the joist and shall not be located in the middle of the third span. Where joists are notched on the end for leger, the notch shall exceed one-fourth the joist depth. Cantilevered joists shall not be notched unless the reduced section properties and lumber defects are considered in the design.

Holes

Holes drilled or bored in the joists shall be within two inches of the top or the bottom of the joists, and their diameter shall not exceed one-third the depth of the joist.

Effective April 1, 1999 the permit fee for all sewage ejectors will be $100.