Do I need plan check for a potable water system when the water service is less than 2 inches?
Plan check is not required for a 2-inch or less water service when the potable water piping is sized using table 610.4 of the Los Angeles Plumbing Code.
Do I need plan check for a gas system?
Low pressure gas systems (2 psi or less) with more than 10 gas outlets require plan check. Medium and high pressure gas systems (more than 2 psi) require plan check regardless of the number of gas outlets.
Do I need plan check if I am adding plumbing fixtures in an existing building that has a main pipe 2 inches diameter or larger?
Plan check is not required for existing systems that are added added or altered with branch lines serving less than 20 fixture units and sized per table 610.4.
When can I use combination waste and vent systems?
Combination Waste and Vent Systems are permitted when structural conditions prevents the use or conventional waste system.
What piping material I can use for subsoil drainage system?
The acceptable pipe material for subsoil drain are listed in table 1102.5 of LAPC. Acceptable pipe material are Asbestos Cement, PE, PVC, and Clay.
When do I need to have a graywater ready system?
In general, "Graywater Ready Systems" shall be provided for all building plans submitted after June 6, 2016.
Do I need plumbing plan check for a swimming pool installed in a single family dwelling unit?
Plumbing plan check is required only for swimming pools installed in apartment buildings or commercial building and it is not required for single family dwelling units.
What are the over-the-counter hours for Mechanical Plan Check?
- Monday 7:30 AM - 4:30 PM
- Tuesday 7:30 AM - 4:30 PM
- Wednesday 9:00 AM - 4:30 PM
- Thursday 7:30 AM - 4:30 PM
- Friday 7:30 AM - 4:30 PM
Can I use a slope of less than 1% for rain water piping?
No, since the pipe sizing tables for rain rainwater are based on a minimum 1% slope.
Can I install a water heater in the yard?
The Plumbing Code allows outdoor installations of water heaters. Check with the Zoning engineer for required minimum distance from the property line.