Inflow & Infiltration

Inflow & Infiltration: What is it?

Inflow & Infiltration describes the situation where unwanted water sources find their way into a wastewater system. These sources are storm water (inflow) and groundwater (infiltration) and can be problematic to wastewater systems. This water, which ideally should drain into the ground or be routed to storm drains, can easily overload wastewater systems.  And that can cause sewage overflows to creeks, basement backups, and impaired sewer operations.

When groundwater and storm water enter sewer systems treatment plants become overwhelmed. And this can create unplanned expenses. It is important to determine whether an issue is present or imminent. And then determine the best path forward. Finally, a maintenance and CIPP lining plan is the best solution.


Inflow is storm water that enters the sewer collection system through direct connections. These connections often include gutters, yard drains, catch basins, manhole covers, sump pumps, foundation tiles and indirect connections with storm sewers.

Inflow happens after precipitation such as rain, snow, or snow melt. And each can contribute to high sewer flows. As a result, hydraulic backups and the pooling of water are often seen. And that is why inflow is generally measured during wet weather.


Infiltration is groundwater that enters the sewer system. Ground water can enter through interceptors, collectors, manholes and side sewers. And it can enter through cracks, leaky pipe joints, connection failures and deteriorated manhole covers. Infiltration amounts vary by season and in response to groundwater levels. The highest infiltration flows often result from significant storms or extended precipitation. So, infiltration is generally measured in wet weather seasons during seasonally high groundwater conditions.

Contact Accujet

So, if you are experiencing high amounts of I & I, contact the professionals at Accujet Sewer and Drain Cleaning for help! We are here for you and can help develop a plan to keep your system flowing efficiently.

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    We specialize in a variety of services that allow us to inspect, clean, repair, replace, and line municipal pipes with speed and efficiency. So call us if you have any sewer related issue.

    Hydro Excavation

    Using high-pressure water to remove the soil from around your municipal pipes will allow our team to safely and naturally excavate your property. So the cost and mess will be reduced.

    Cured-in-place Pipe (CIPP)

    The use of trenchless technology on your sewer and drain pipes is a way to restore pipe flow with ease. and this will avoid massive excavation.


    Manhole to Manhole Pipe Lining

    Your city’s sewer and drain system needs to be running at all times. So Manhole to manhole pipe lining eliminates the need for excavating your streets.

    Robotic Cutting

    We use industry leading technology to robotically cut and reinstate your pipes from within. And this is safer because human entry is dangerous and prohibitive.

    Jetting and Descaling

    It is essential for your pipes to be thoroughly cleaned with environmentally-friendly techniques. And that's why we have certified professional for the job.

    Cleaning and Televising

    Determining the right solution for your municipal pipes is made possible through effective inspection technology. And it starts with a cleaning and televising plan.

    Call us to schedule your service or request a free estimate today. And we are available 24/7.