Be aware that those pumps are rebuilt and from experience have a wide range of life spans some long, some fairly short. Be aware of the risk. Those porous tube diffusers make small bubbles but they plug up or clog relatively quickly with carbonates and attached microalgae compared to membrane diffusers. Cleaning those porous tube diffusers to close to new condition is a real challenge. Anyone discovered a good way to clean those diffusers?
Last edited by Bill Cody; 10/31/15 06:19 PM.
