Luke* Posted April 24, 2005 Report Share Posted April 24, 2005 For pumping about 150L from trash can (aged water holder) to tank (head height about 156cm in a few minutes (assuming this won't cause too much flow distress to the fish) what size pump (litre/gallon/hour) would I need? Cheers Quote Link to comment Share on other sites More sharing options...
Brianemone Posted April 24, 2005 Report Share Posted April 24, 2005 i have a via aqua that i would use for that i believe its a 3300, maybe something a bit smaller would be ideal is it for your discus tank?? Quote Link to comment Share on other sites More sharing options...
Luke* Posted April 24, 2005 Author Report Share Posted April 24, 2005 Yeah it would be for 50% daily/bidaily water changes. So that's 3300 litre/hour is it? Quote Link to comment Share on other sites More sharing options...
Brianemone Posted April 24, 2005 Report Share Posted April 24, 2005 yeah so it would probably be a little overkill. slow would be good for the discus so 300l/hr would be ample would you have it on a float switch??? Quote Link to comment Share on other sites More sharing options...
Warren Posted April 24, 2005 Report Share Posted April 24, 2005 What you need is a pump to do 150L/number of minutes you want it to take x 60 in L/hour. eg, 5 Minutes: 150/5*60 = 1800L/hour (=30L/min) eg, 15 minutes 150/15*60 = 600L/hour (=10L/min) The pump Brianemone has suggested would take 30 minutes. These values assume no head. If you can get the pump curve for the pumps you look at, you'll be able to see what rate they pump at the head you propose. If not, allow a bit of extra capacity, about 1.3x at 1.56m Quote Link to comment Share on other sites More sharing options...
suphew Posted April 26, 2005 Report Share Posted April 26, 2005 Do the calc and check the graphs, the zero head LPH ratings are pretty meaningless for what you want to do as different pumps handle head better than others. I have a number of pumps and powerheads rated over 1000LPH which proberly wouldnt pump any water to the head you need. A cheaper option might be to get a big cheap pond pump, like one of those resun king 4 or 3's (should only be around $125 if you shop round), since you will only be running it for a few minutes a day and I assume noise isn't a factor. Quote Link to comment Share on other sites More sharing options...
Luke* Posted April 28, 2005 Author Report Share Posted April 28, 2005 Thanks for all the great advice guys appreciate it. Will also need a few powerful heaters and bubbler for aeration to age the water but I'm getting there slowly. Wouldn't be able to handle doing that many buckets too often Quote Link to comment Share on other sites More sharing options...
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