Is a sediment trap required by code?
While the old code language only required sediment traps where the gas piping dropped down to appliances, there is no longer such language in the code. In other words, sediments traps are required at furnaces, boilers, water heaters, clothes dryers, ovens, space heaters, unit heaters, gas fireplaces, and more.
How long does a sediment trap need to be?
3 inches
Made of a tee fitting with a capped nipple, a minimum of 3 inches in length, in the bottom opening of the run of the tee. Provide a 90-degree change of direction of gas flow, to help prevent sediment from flowing over the trap.
Where should sediment traps be placed?
Place sediment traps near the point of discharge and build traps in series to intercept and treat flow moving down long drainage paths through a site. Place stormwater basins in low lying areas on the outer edge of a construction site where water naturally flows or is directed according to site plans.
What is the difference between a drip leg and sediment trap?
Plumbers and some inspectors will often use the terms interchangeably. However: Sediment traps are basically for the purposes of catching sediment and contaminates in a gas line. Drip legs are basically for catching condensate and moisture in a gas line.
What appliances need a sediment trap?
According to the 2016 California Plumbing Code (CPC), sediment traps are required for all gas appliances except: illuminating appliances, ranges, clothes dryers, decorative appliances for installation in vented fireplaces, gas fireplaces, and outdoor grills. Those are quite a few exceptions.
How much does it cost to have a sediment trap installed?
Plumbers charge $75 to $150 to install a gas line sediment trap. Sediment traps capture moisture and sediment so that they don’t enter the control unit.
How important is a sediment trap?
It is actually a very useful component of the gas line known as a sediment trap. Sediment traps installed at gas appliances are used to help catch any sediment or debris that may be present in the gas line and prevent it from entering the appliance and possibly damaging it.
How do you size a sediment trap?
A Grass Outlet Sediment Trap consists of a trap formed by excavating the earth to create a holding area. The trap has a discharge point over natural existing grass. The outlet crest width (feet) shall be equal to four (4) times the drainage area (acres) with a minimum width of four (4) feet.
Does each gas appliance need a drip leg?
Drip legs are required to be installed in a manner that meets or exceeds fuel piping codes and manufacture requirements for appliances and devices. It is a very simple and necessary component of fuel piping installation. The drip leg requirements are the same for both natural gas and propane.
How much does it cost to install a sediment trap on a water heater?
Sediment traps cost about $10, but you can do it yourself for less without the kit by shopping for 1/2 inch gas line at Home Depot. If you have a professional install one, it can cost up to $100.
What are the requirements for a sediment trap?
Sections 14.5, 14.6, and 14.7: Outlet structures must prevent short-circuiting and discharge of floating debris, withdraw water from the surface of the sediment pond, and have sufficient energy dissipation for the outlet within 24 hours after connecting to a surface water.
How are sediment traps and basins used to control runoff?
Sediment traps and basins provide good control of coarse sediment and are moderately effective for trapping medium-size sediment particles. However, they have a relatively low trapping efficiency for fine silt and clay particles suspended in runoff.
Can a sediment trap be installed on a gas line?
As you may expect, when we do come across gas lines, we sometimes find improper sediment trap installations. And although they may have been present for many years, it doesn’t mean it’s ok and it’s safe. As you can also imagine, when we reference an improper installation, we do get some pushback by homeowners and real estate agents.
How much sediment does a temporary basin need?
Where permittees have not calculated the two (2)-year, 24-hour storm runoff amount, the temporary basin must provide 3,600 cubic feet of live storage per acre of the basins’ drainage area.