Joel,
Am i correct in that most of your growbeds are of the flood and drain design?
What sort of time base is your pump on?
I'm most probably going to go with the continuous flow system on a smaller pump.
I was going to go flood and drain with a LARGE pump (swimming pool filter pump) but was worried about the on and off cycles shortening the life of the motor and also failures taking out my fish stock.
All in all a smaller pump run cont. (cont. flow) or a large pump (flood and drain) would probably come up equal for power usage (i need to do a calc on it
)
I was also going to couple a twin outle air pump which only draws 6W to the fish tank. I figure this gives me more O2 in the water and also a sort of redundancy in the sense that both the water pump and air pump would have to fail at the same time for my fish to loose oxygen. I've learnt first hand as per my last post how much O2 fish use when there are lots of them and also how quickly they can die
What do you think?
Steve
