Comparison of Wastewater, Lake or Pond Aerators for Water Restoration and Water Management

02 Jan

If an aerator diffuser for water restoration or water management lasts a lifetime and other aerators last 3 – 12 months, we should consider the cost on a yearly basis. Also, if the lake, pond or wastewater aerator does not give good water restoration or water management, its cost is wasted. Many pond, wastewater or lake aerator diffusers cost less than CLEAN-FLO aerator diffusers. But these other aerators are not always good water restoration or water management.

You may pay $38.00 for a rubber membrane diffuser aerator instead of $299.99 for a CLEAN-FLO lake aerator diffuser, $229.99 for a CLEAN-FLO pond aerator diffuser or $149.95 for a wastewater aerator diffuser. The rubber diffuser is not weighted, so you may have to spend $81.50 for a diffuser weight. The CLEAN-FLO diffuser is self-sinking and has an average life of about twenty years. We have seen rubber membranes last three months. But let’s say they actually last for a year. That means that if you replace the rubber diffuser once a year, the cost over a 20-year period is $860. But that diffuser was not weighted. A weighted diffusers will cost $3,938 to replace twenty times, plus shipping and labor to install it twenty times! But for every CLEAN-FLO diffuser, you need four rubber diffusers for lakes or eight rubber diffusers for wastewater. Thus, to really compare the price of our diffusers with rubber membranes, you will pay $15,754 plus shipping and labor to get the same oxygen transfer.

Unfortunately, you cannot always have good water restoration or water management with just eight rubber membrane diffusers. These use only 0.8 CFM compared to 3.6 CFM for CLEAN-FLO’s lake diffusers, 1.8 CFM for CLEAN-FLO’s pond diffusers and 9 CFM for CLEAN-FLO’s wastewater aerator diffusers. Good water restoration or water management may require hundreds of membrane diffusers.

One company provides 100 feet of air hose with their 8-diffuser package and NO cabinet (that’s an additional large expense). The cabinet sits about 25 – 75 feet from the shore to protect it from floods. That puts those eight diffusers out 25 – 75 feet into the lake a few feet apart. But the lake may be 3 – 300 acres. Such a policy is not good water restoration or water management.

Other companies may sell you four times the air hose that we would use if they engineer the correct number of diffusers for good water restoration or water management. To get those four aerator diffusers out into the lake, it could cost you another $8,000.

Rubber diffusers sometimes tear and have to be replaced. In spite of claims, they also may clog within 3 – 12 months. As a result, a worst problem than torn membranes occurs that is not seen. Rubber membranes have about 2,000 holes in them. The CLEAN-FLO diffuser has over a billion holes. The membranes begin to clog and swell as soon as they are put in the water. As they swell, the holes become larger. Now you have less bubbles coming out of larger holes, with water restoration or water management nothing like you expected or that CLEAN-FLO attains.

CLEAN-FLO systems restoring a reservoir in Korea.

CLEAN-FLO systems restoring a reservoir in Korea.

Compressor cabinet.
Compressor cabinet.

Inside compressor cabinet.
Inside compressor cabinet.

Microporous ceramic diffuser.
Microporous ceramic diffuser.

Multi-compressor cabinet.
Multi-compressor cabinet.