FAQ: How To Install A Grease Interceptor In The Ground To Main Water Supply?

Where do you put the grease interceptor?

Gravity Grease Interceptors (GGIs) are generally installed in the ground outside the facility, upstream from the “black” water (sanitary waste) drain line, and are at least 500 gallons in capacity.

Where is a grease trap usually installed?

Hydromechanical grease interceptors (commonly called grease traps) are usually installed underneath the 3 compartment sink or in the floor of the kitchen. They trap grease over time and need to be pumped frequently, sometimes even weekly.

Should a grease trap be full of water?

When grease is 25% or more the total liquid depth. If the container is filled with a surplus of fats, oils, and greases (FOG), important processes and functions may get interrupted or slowed down in your kitchen. In fact, cleaning grease traps that are 25% full is an EPA rule; for health and safety reasons.

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Do grease interceptors need to be vented?

Grease interceptors must have a vented waste, sized in accordance with code requirements for venting traps, to retain a water seal and to prevent siphoning. One interceptor to serve multiple fixtures is recommended only where fixtures are located close together.

How much does it cost to install a grease interceptor?

A: The average install for a small grease trap (0-100 gallons) is between $250 and $1500. The average cost for the installation of a new grease trap (750-1500) is between $4,000 and $8,500. Grease recovery devices cost between $3,500 and $6,000.

What is the minimum size of a grease trap interceptor?

C. The minimum grease trap size for all schools shall be 2,000-gallons capacity.

How much does it cost to install a 1000 gallon grease trap?

The cost for having a 1000 – 1500 gal grease trap is between $225 – $315 per pumping, assuming that you sign up for an extended service program with a given grease hauler. A “one-off” pumping would certainly cost more. A: The average install for a small grease trap (0-100 gallons) is between $250 and $1500.

How hard is it to install a grease trap?

Installing indoor under-sink grease traps may be less technically difficult but you will experience a lot of plumbing and regulatory headaches if your grease trap isn’t properly installed. Having an appropriately sized grease trap installed is the most reliable way to avoid jeopardizing your permit.

How long does it take to install a grease trap?

How long does it take to install a grease trap? The price and installation cost of the grease trap are significantly lower to the fact that less labor is required and can be done in less than one day. Although, small grease traps will require more service, which can be more costly in the long run.

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Why does my grease trap keep overflowing?

An overflowing grease trap is a result of not pumping out the grease from the first compartment in a timely manner. To verify the problem, simply dip a pole in the compartment to evaluate the depth of the grease trap. If it reaches the bottom, you should know that grease trap pumping is immediately required.

What happens when a grease trap is full?

A full grease trap results when grease has not been removed from the primary compartment in a timely fashion, causing it to spill over into the secondary compartment, and clogging crossover, incoming, and outgoing lines. To see if the trap is full, open the lid and use a pole to gauge the depth of the grease cap.

Can you wet vent a grease interceptor?

A Hydromechanical Grease Interceptor (HGI) does not require to be directly vented unless specifically mandated by local code or by law. Venting is required on the downstream drain line – the same as most other plumbing appliances and fixtures to allow efficient and unrestricted discharge of the waste water.

Do you need a trap before a grease trap?

The Uniform Plumbing Code (UPC) does not permit a grease interceptor to serve as a fixture trap and also prohibits the installation of a vent between the air intake on the flow control and the grease interceptor. There needs to be a trap and vent between the fixture and the vented flow control fitting.

Can you studor vent a grease trap?

No AAVs or studor vents are to be used on the installation for any vents. If a semi-automatic or automatic interceptor is installed then a valve will be installed on the interceptor outlet.

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