Thanks again esshup, been a little busy and haven't had much time to get back on the site.

I have been looking into a few different aeration systems, and they are all recommending a 1/2 hp pump with 3/4" hose from the pump to the diffuser since it is a long run. The 3/4" hose is pretty expensive and just want to see if that is correct and also if I could get away with a 1/4 hp pump.

Thanks.