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mclovin

10 x 2 x 800mm display tank

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Kenster does a good pump or maybe a laguna.

Both of which are low wattage.

What thickness glass is it ??

Can't wait to see the progress on this beauty.

=)

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I ran a 10x2x2.5 with 4x18x18 sump like yours.

one 40mm drain and one 25mm return.

No dramas with flow rate or drain rate.

When power goes off, sump fills up to 5 inches below rim.

Ran 10,000 lph from kenster.

Hope that helps:)

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looking into an 8000L pump... leaning towards a laguna, thats what dennison reccomended.

dont want to risk breaking the tank, worst case senario will get a less powerful sump pump and use a strong internal filter to make up for the water turn over.

thankyou very much for everyones input

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To put it in perspective I have 4 x 40mm returns with 2 x 3500lph pumps on an 8x2x2 and is IMO "adequate" for a moderately stocked 1200L tank + sump.

Seriously what your doing is like building a super street rod and only putting a 1.3L engine in it!

Redrill the tank with at least 3 x 40mm outlets, if it were mine I'd go 5 x 40mm returns and twin 4500lph pumps with spray bars at either end to get the water moving.

Great tank, take the time to make it awesome. :)

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sorry guys, havent meant to cause an argument...

im only writing down as im thinking, havent decided on anything.

just really concerned about the tank cracking, wasnt exactly cheap...

if i can find someone who would do it with a guarantee that would be perfect.

i know youse all think im not taking in anything your saying, i have read every post and have taken all into consideration :)

appreciate the help everyone, but does anyone know of someone who drills tanks with a guarantee,

cheers, murray

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Maybe see if you can add it to your home contents insurance, then if it does break all you will be up for is the insurance excess :)

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...just really concerned about the tank cracking, wasnt exactly cheap...

if i can find someone who would do it with a guarantee that would be perfect.

Have you asked the builder of the tank?

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just run a smaller pump mate, around 3500L/H would be perfect.

Prob be 2000L/H max at head height and your 32mm fittings will handle it.

Edited by efc

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why dont you just have a wier ???? mine has a wier and never overflows, a 4800 pump with 2, 25mm down pipes, perfect flow and no probs. also no ugly pipes, bulkheads hanging out the end of a good sized disply tank.

just a suggestion

mike

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just run a smaller pump mate, around 3500L/H would be perfect.

Prob be 2000L/H max at head height and your 32mm fittings will handle it.

Sure the fitting will handle that flowrate but it won't be enough filtration (turnover) ... IMO

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sump filters actually work better at slower turnovers, its all about contact time between water and filter media.

Just have a few wavemakers for turnover, stop dead spots.

A million and 1 opinions, and all have pros and cons.....but yeah if you dont want to drill more holes just run a smaller pump.

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sump filters actually work better at slower turnovers, its all about contact time between water and filter media.

Just have a few wavemakers for turnover, stop dead spots.

A million and 1 opinions, and all have pros and cons.....but yeah if you dont want to drill more holes just run a smaller pump.

?

its about 1400 - 1500 liters of water to be filtered!

2000lph turnover? .....

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Yeah it works by both ways

say it takes 1min for 25L of water to travel through the sump using a 1500L/hr pump

a 4500L/hr pump would pump 3 times the water but it will travel through the sump in a shorter amount of time = less contact time with the bacteria

I think that's right?

correct me if I'm wrong?

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I work off 4 - 5 times turnover rate, even if the flow rate is a little high it is still going to contact the bio media, if cr@p media is used you wont get much colonisation which will have far more of an impact than any flowrate will.

yes there is alot more to it, but 1-2 times p/h seems way too low IMO

specially seeing as the sump is designed to be used for mechanical filtration as well (I assume)

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