https://www.xylem.com/siteassets/brand-s...-aeration12.pdf


Here is the link to the membranes i used. with the specs. I am not into figuring out all that information on flow rates but maybe one of the geniuses here can help me out let all us DIY cheapo guys know how they compare to something they use.

Disc material Specially blended highgrade
EPDM
Diameter 178 or 229 mm
(7 or 9 in)
Airflow range per disc 0.8–7 Nm³/h
(0.5–4.5 scfm)
Standard oxygen transfer
efficiency (SOTE)
Approx. 6.5% per m
submergence (2% per ft)
Standard aeration
efficiency (SAE)
2.5–6 kg O2 /kWh
(4–10 lb O2 /hph)

This is obviously way over my head as i am a pipefitter by trade not sanitation specialist or aerator engineer. But after this post if closed i am sure i will be highly educated in the matter.

Just an average guy trying to keep up two ponds.
Main pond 9000 sq ft with 1700 sq ft island 5.5ft avg depth
Second pond 2400 sq ft 4ft avg depth