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Re: riser pressure...
On Fri, 19 Jun 1998, Mike Cordero wrote:
> hi all .. this is in line with this riser pressure discussion ..
> 3 questions :
>
> 1. what flow rate is optimum .. in gal/hr or gal/min
> is ideal for gravel circulation ??
>
I don't know that anyone has optimized this. Depending on the size of
your tank the ideal flow rate probably would be more readily measured in
drops/minute than in gallons/min.
> 2. would it act like a heating cable ?
>
It won't give your plants the "warm feet" effect that people get from
heating cables.
> 3. if i plug the riser tube up and put a air hose thru it
> attach this to the venturi tube of a powerhead ..
> would the flow rate be enough ??
>
I do this and it works well - it may actually give too much flow. The
flow can be regulated with a valve or possibly with a drip irrigation flow
regulator. Obviously your mileage will vary.
Roger Miller