sump pump

  • toni-a
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toni-a created the topic: sump pump

I almost finished building a 10 gallon sump for my 65 gallon tank, need to install the pump.
what power and output should the pump be ?
can a powerhead work as pump ?
is it better to have two pumps rather than only one ?
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DC5DREWSKY replied the topic: Re: sump pump

How big is your overflow?
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toni-a replied the topic: Re: sump pump

overflow is not a problem.
In fact I am installing twin overflow valves one on each side is it a good idea ?
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DC5DREWSKY replied the topic: Re: sump pump

That's fine but I was asking what size is your overflow and what gph are you looking for?
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toni-a replied the topic: Re: sump pump

That's exactly my question for a 65 gallon tank with a 10 gallon sump full of bioballs and a pre sump with filtration floss to remove any solids how much GPH do I need.
Konowing water surface is one meter above the sump
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Nina_W replied the topic: Re: sump pump

between five and ten times turnover, tanking into account the head, if you want your sump to do both mechanical and biological effectively. If this is just biological, less would also be fine, down to about three times an hour.

Pumps say how much their flow drops over head height - it differs from model to model.

So if you go for a 650 gallon per hour pump, depending on the brand, you could get almost no flow with a meter's head, or you could get 375 gallons per hour, or you could get 600 gallons per hour. I think you need to see which pumps are available to you, and look at the diagram drawn on them, since importing the brand names I know, and others know, aren't always practical.

For example, my sicce syncra silent pump, pumps between 5000 and 2700 liters per hour, max and min respectively (if it goes under the min, the pump will burn out over time). At a head height of 1 meter, this pump would give 4250 liters per hour. At three meters, though, this pump can no longer function. In contrast, my lifetech power filter, that has the same max and min liters per hour, drops to 3000 liters per hour over a meter head, but still pumps about 1000 liters per hour at three meters (the pump would burn out over time at this rate, but it can still move water, where the Sicce one cannot).
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toni-a replied the topic: Re: sump pump

never mind, I dropped the sump idea for the time being, I was offered a very nice canister :D
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