From Arithmetic to ATUs: The Top 10 Stories of 2015

From Arithmetic to ATUs: The Top 10 Stories of 2015

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As the end of the year approaches, here’s a recap of some of the top stories on If you missed any of these, now is your chance to catch up. Enjoy this look back at 2015.

10. Wastewater Loads and the ATU
Both hydraulic and organic loading need to be considered when making a decision about which type of advanced treatment system to select and whether it fits the wastewater treatment needs.  

9. Best Behind the Scenes Excavating Photos
Check out a slideshow of some of the best behind-the-scenes photos of installers and their trusty excavators in action.

8. Here’s Your Supply Line and Manifold Master Class
Not sure how to set up a piping system for even pressure distribution? No sweat, just read this.

7. Why Use Pressure Distribution?
Pressure distribution in above-ground systems is needed to avoid problems with localized hydraulic overloading, leading to leakage or seepage out the toe of the system. Here’s a closer look at pressure distribution, not only for mounds but other types of systems as well.

6. The Battle of Beds vs. Trenches
A good design principle that results in better treatment is sometimes lost. Contact with the soil means that there will be more opportunity for treatment and for the effluent to infiltrate the soil in the trench configuration.

5. Tips for Laying Out Your Laterals
These design considerations for pressure laterals make achieving equal distribution a piece of cake.

4. Large-Scale Treatment Systems We Love
If big systems aren’t your specialty, we look at some options to get your foot in the large-scale-treatment-installation door.

3. Signs of Trouble in Concrete Tanks
Concrete tanks are a standard in the wastewater industry, but when you confront one in the field, how do you know if it has a problem? Fortunately, they’re pretty easy to spot, says one industry expert.

2. Expert Tips for Baffle Repair
Baffle and tank deterioration is always a hot topic and one where unfortunately there are not absolute answers in terms of repair and replacement.

1. Simple Septic Math
There are a couple basic tank characteristics that are necessary to know when maintaining septic and pump tanks. To determine them in the field requires the use of some basic math to determine areas and volumes. Brush up on your math skills with some basic septic practice problems.


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