Aeration Start-Up Note: Keep in mind that if you start or begin a bottom, air injected, aeration system in early summer thru fall, only run it a short time the first day. Second day the run time can double, third day it can run triple the time, etc. Do not bring up all the bad water from the deep area all at once (continuious run) or you will degrade the upper water oxygen concentration enough to stress or even kill your fish.
Also the deoxygenated deep water usually has hydrogen sulfide (gas) in it and it is highly poisionous to fish in relatively low concentrations. The hydrogen sulfide gas is responsible for most of the bad smell during a turn over. You do not have to do this slow run time at start up if you begin aerating right away in the spring when the deep water still has oxygen in it.
PS the soaker hose can work great as a bottom diffuser BUT it plugs up quicker than many of the other membrane style diffusers. All compressors should have a pressure guage (low psi style) to monitor the pressure of the system and increased running pressure will indicate the degree of diffuser clogging.
B. Cody

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
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