HIBLOW USA Helps Homeowners Calculate Friction Loss in Pond Aeration Systems
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SALINE, Mich. - Michimich -- Calculating or measuring the backpressure is important when planning and maintaining and aeration system.

Backpressure and air flow have an inverse relationship – the higher the pressure, the less the air flow. In reverse, the lower the pressure, the higher the air flow. The amount of airflow entering the pond is important to understand when choosing a pump, diffuser, and tubing. To estimate the amount of air flow we need to first calculate the total system pressure.

Every 2.31 ft. of water depth is = 1 PSI. Example: the water pressure for an 8' deep pond is: 8'/2.31 = 3.46 PSI. IBLOW recommends a medium bubble diffuser which typically puts less than 0.25 PSI on the system. Regardless of which diffuser size/ type you choose, it is important to be able to estimate the amount of pressure the diffuser adds to your system. Also note the amount of air flow recommended for the diffuser. If below the minimum flow recommended, the air may not be strong enough to open the pores and "self-clean".

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To calculate friction loss, the air pump size, length of the tubing, number of lines, elbows, and diameter of the tubing will all factor into the calculation. First, we need to figure out the diameter of tubing that is best for your set-up. As a rule of thumb, for any run within 50' a 3/8" tube is likely ok. From 50'-100' we typically suggest ½" diameter tubing. Anything beyond 100' we suggest ¾' diameter tubing. However, that is just a rule of thumb and there are exceptions based on the amount of air flow from the pump (pump size) and the back pressure.

Read the full article: https://www.hiblow-usa.com/2022/06/07/pond-aerator-how-to-calculate-backpressure/

About HIBLOW, USA: We've manufactured air pumps for the pond and aquatic industries for over 30 years. We know that reliability, energy efficiency, and low sound levels are all extremely important for your aquatic systems. Whether you're aerating tanks on fish transport vehicles, operating a commercial fish farm, or just keeping your backyard pond in a healthy condition—you can depend on our HP and XP pond aerators for your application.