Effective ​aeration incl. circulation suggestions to North East Water:  OLOID 200 (~70 W) and OLOID 400 (~200 W) for effective ​ponds (and SBRs) aeration incl. circulation. For large scale ponds and SBRs circulation: OLOID 600 (~430 W) see: http://www.oloid.ch/index.php/en/

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Effective ​aeration incl. circulation suggestions to North East Water: 

OLOID 200 (~70 W) and OLOID 400 (~200 W) for effective ​ponds (and SBRs) aeration incl. circulation.

For large scale ponds and SBRs circulation: OLOID 600 (~430 W)

see: http://www.oloid.ch/index.php/en/