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Question: How often should trees be replaced in a Filterra system?
Answer: The trees and plants in a Filterra bioretention system do not need to be replaced on a fixed schedule. With proper species selection and maintenance, trees can last 10–20+ years.
They should only be replaced when they show signs of disease, pest infestation, or decline that cannot be treated. For a complete list of recommended plants, please visit https://www.conteches.com/technical-guides/search/?filter=OOIA4XCWXG
Question: Does the modular wetlands linear system come in prefabricated sizes?
Answer: Yes, the Modular Wetlands Linear system is available in various prefabricated sizes. The sizes available depend on the configuration (open planter, underground). Custom sizes may also be available.
Prefabricated sizes include:
These sizes provide flexibility to meet specific site constraints and installation requirements.
Question: What is the difference between the Filterra and the Modular Wetland System
Answer: The Filterra and Modular Wetland System (MWS) are both proprietary stormwater treatment systems that use biofiltration but differ in treatment processes, configurations, and size.
Both products are approved through numerous local, state and federal verification programs, including the New Jersey Department of Environmental Protection (NJ DEP) and Washington Department of Ecology (GULD) – Basic, Enhanced, Phosphorus, and Oil.
Filterra
Modular Wetland System (MWS)
· Configurations
Question: Where can I find a user manual?
Answer: User manuals for all Contech products can be found in our technical documents library at https://www.conteches.com/technical-guides/search/
Question: How do I become certified to perform maintenance on Filterra?
Answer: Companies interested in becoming a Contech Certified Maintenance Provider should contact Kristin Jewell Inside Sales Coordinator – Activation & Maintenance, at [email protected]
Question: What is your warranty?
Answer: Contech warrants that the products sold hereunder are substantially free from defects in manufacturing and workmanship and shall conform to the specifications described in this quotation for a period of one (1) year from the date of delivery. This limited warranty does not apply to any products sold hereunder which have been modified or disassembled, that have been subjected to misuse, misapplication, neglect, alteration, accident or act of God, or that have been improperly installed, operated or maintained.
For more information, please review our Terms and Conditions of Sales at https://www.conteches.com/cos/
Question: How much does a Contech stormwater system cost?
Answer: Prices of Contech stormwater products vary based on several variables, including size, standard vs. custom designs, flow rate capacity, delivery location and other factors. For pricing information, we recommend you contact your local Contech representative.
Question: What is the minimum height for the Kraken Filter?
Answer: Assuming 10” tall cartridges and 18.5” minimum drop from inlet to outlet, the Kraken vault could be as short as 3’-0” from rim to system invert.
Question: Can the Jellyfish Filter be installed beneath the groundwater table?
Answer: Yes, the Jellyfish Filter can be installed beneath the groundwater table.
Question: What headloss is required to operate the Jellyfish Filter?
Answer: The Kraken Filter has filter cartridges in 3 different heights: 30”, 20”, and 10”. The recommended hydraulic drop for each is: 38.5”, 28.5”, and 18.5”, respectively. The minimum hydraulic drop for each is: 30”, 20”, and 10”, respectively, the same height as the filter cartridges. Flow capacity is considered as two different variables, the first is treatment flow rate, and the second is bypass flow rate. Both vary with the size of the Kraken vault.
Question: What is the minimum rim to outlet pipe invert that can be used in a Filterra?
Answer: Flow-based Filterra requires 2’-7” from inlet to outlet, and 4’-1” for standard rim to outlet, and 4’-7” for deep configuration rim to outlet.
Question: Do you have different tops available for the units that are solid concrete?
Answer: Yes, Contech offers different types of top slabs/covers for our treatment systems, including grated inlets, trench covers, and hatches. The availability of these depends on the type of system and size. For more information, it is recommended you contact a local Contech representative.
Question: How do you size a hydrodynamic separator?
Answer: Proper sizing of hydrodynamic separators (HDS) should start with checking applicable regulations. In many cases, local or state regulations will dictate how to size an HDS system and even provide a list of what products are approved for use. If there are no regulatory requirements, the engineer must identify which pollutant(s) need to be removed and their target removal percentage.
There are two primary methods of sizing an HDS system: the Point-On-a-Curve method and the Net Annual method. The Point-On-a-Curve method determines the pollutant removal efficiency of an HDS system at a specific flow rate for a given pollutant particle size. The Net Annual Method determines the pollutant removal efficiency of an HDS system over the course of a year’s worth of rain events for a given pollutant particle size.
For more information, please read this blog post - https://www.conteches.com/knowledge-center/learn/the-stormwater-blog/common-sizing-methodologies-for-hydrodynamic-separators-part-1-point-on-a-curve/
Question: What is the difference between Modular Wetlands 360 VS Modular Wetlands Linear
Answer: The main difference between The Modular Wetlands 360 and the Modular Wetlands Linear is the Modular Wetlands 360 uses cylindrical media beds rather than horizontal media beds, and it does not contain a separate pretreatment or discharge chamber.
DSBB stands for Debris Separating Baffle Box
Question: Is the Stormceptor certified by the California State Water Board for Trash Capture?
Answer: No, the Stormceptor is not certified by the California State Water Board for Trash Capture. Contech hydrodynamic separators that are certified by the California State Water Board for Trash Capture include the CDS and the Debris Separating Baffle Box (DSBB).
Question: Do you manufacture ductile iron pipe?
Answer: No, Contech does not manufacture ductile iron pipe. However, our sister company, U.S. Pipe, does. Both Contech and U.S. Pipe are part of the Quikrete family of companies. For more information, please visit the U.S. Pipe website: https://www.uspipe.com/.
Question: Do you manufacture reinforced concrete pipe?
Answer: No, Contech does not manufacture reinforced concrete pipe. However, our sister company, Rinker Materials, does. Both Contech and Rinker Materials are part of the Quikrete family of companies. For more information, please visit the Rinker Materials website: https://www.rinkerpipe.com/
Question: Do you provide cured-in-place pipe (CIPP) solutions for pipe rehabilitation.
Answer: No, Contech does not provide CIPP solutions. Contech provides relining and rehabilitation solutions via hydraulically efficient pipe solutions, such as DuroMaxx® SRPE, ULTRA FLO®, Smooth Cor™, CORLIX®, or A2™ Liner PVC. To learn more vist https://www.conteches.com/markets/reline/
Question: How do I obtain my PDH certificate for a Contech webinar?
Answer: You should have received an automated follow-up email after the event that includes a link to download your certificate. If you are unable to locate the email, please send us a message through the Contact Us page at https://www.conteches.com/connect/.
Question: When is the next webinar?Answer: A list of upcoming webinars can be found on our events page at https://www.conteches.com/knowledge-center/technical-presentations/events/
Question: Where is Urban Pond available?
Answer: The UrbanPond concrete detention system is available in the following states:
Alabama
California
Florida Panhandle
Georgia
Indianna
Kentucky
Michigan
Ohio
Tennessee
Texas
Western Pennsylvania