byAlma Abell

Many homeowners overlook the inspection process for their sewer line when they purchase their property. It is a crucial inspection that must be conducted by professionals. This is especially so for homes which are older than ten years of age. Due to the complexities and technicalities of the sewers, one must hire professional experts who are adept in the sewer line repair in Birmingham AL.

The damage can range from a clog, leak or broken sewer line. There are specialized tools and equipment like video cameras to inspect the sewers from the inside. Such work cannot be carried out by amateurs or homeowners with zero experience in handling this niche. You could potentially damage the entire system, costing more to rectify the problem.

One of the most common problems that require sewer line repair in Birmingham AL is the rampant growth of roots. When roots grow and expand in the tiny opening of the sewer line, it can clog the sewer system with other debris that may latch on to the roots. Though some homeowners use chemicals and other methods to kill the tree roots, it is unhealthy for the tree as well as the environment. The roots may eventually appear and cause further damage to the pipe. Experts in sewer line repair will check for the root cause and solve the problem accordingly.

Though sewer line repair is a highly specialized niche, it is not as difficult to find a competent and qualified contractor with a good track record. It is advisable to search for one that has expertise in trenchless sewer line repair. With the advancement in technological innovations, trenchless sewer repair offers the expert to replace and repair the sewer line in the most efficient manner. As compared to traditional methods, the advanced equipment can handle massive jobs that range from residential to industrial projects. Ask for several quotes to check out for the best contractor that is suitable for the job. The selection of a good sewer repair technician will play a pivotal role in the success of the project as well as the longevity of your sewer lines.

Submitted by: Neil Wilston

Today’s advanced ultrasonic flow meters enable the accurate measurement of liquid flow across a wide variety of process control, water resource management, and energy consumption applications. To select the right ultrasonic flowmeter for your specific liquid application, you must first understand the four basic ways in which ultrasonic flowmeters are classified.

Measurement principle: Transit-time vs. Doppler

Transit-time flowmeters are based on the time difference between upstream and downstream sound propagation intervals, and provide one of the most reliable and time tested measurement principles available to date. This approach provides very good accuracy ( 1-2%), and works well for clean flow applications or flow with minor particles. Applications include pure water, sea water, wash water, sewage, process liquids, oils, chemicals, and any homogeneous liquids which are capable of ultrasonic wave propagation.

Doppler flowmeters are based on the Doppler Effect. They work well with suspension flows where particle concentration is above 100ppm and particle size is larger than 100um, but less than 15% in concentration. Doppler is easier to make and less accurate ( 5%), thus, it is cheaper than a transit-time flowmeter.

Device Portability: Handheld vs. Wall-mount

Handheld (or portable) flowmeters are effective for flow survey, HVAC, and other applications where mobility is a critical requirement. Some handheld flowmeters can be deployed as long-term measurement solutions when and if the environment is accommodating.

Wall-mount (or fixed installation) flowmeters are more suitable for applications such as process control and long-term continuous flow monitoring. The instrument enclosure is often weather-resistant or explosion-proof. These types of meters are usually cheaper than handheld devices because they are normally ordered in large quantities.

Transducer installation: Clamp-on vs. Wetted

Clamp-on flowmeters are non-intrusive, easy to install and easy to maintain. The transducers are mounted outside of a pipe, and don t require the cutting or drilling of the actual pipe. Clamp-on transducers are nonintrusive and therefore cause no pollution or pressure drop in the liquid being measured.

There are two varieties of wetted flowmeters, insertion and flow cell (inline type). Insertion flowmeters require the pipes to be drilled to install the transducers. However, a number of manufacturers provide hot-tapping tools which allows for the transducer installation without depressurizing the pipe or shutting down the flow.

Flow cell, also called spool piece are installed in line with the pipe, through the use of special pipe fittings. The transducers are pre-installed on the flow cell, thus, installation errors are kept to a minimum. In general, wetted transducers provide better accuracy and long-term stability over clamp-on varieties, but usually cost more.

Transducer scheme: Single-path vs. Multi-Path

single-path flowmeters utilize one pair of transducers to form one ultrasonic path to intercept the flow in a pipe. It is suitable for small and medium size pipes. For larger pipe sizes, shorter straight pipe runs and greater accuracy, multi-path transducer installation is a good option. Multi-path flowmeters are traditionally more expensive than a single-path flowmeters, and are often implemented in applications such as custody transfer where accuracy is of paramount important.

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