Remote sumps

[AntsReef]

Hi,
do any of you guys have remote sumps ?

I am in the "thinking" stage of setting up a new system. I currently have a 6' SPS reef with a 4' sump beneath.
I am hoping to set up a 48" x 48" x 30 " display tank and would like to site my sump(5' x 18" x 30") and all associated kit in my garage.
Problem is my garage is about 100' away. Has anyone sited their sump at this kind of distance and if so could you share any advice/experience,
thanks,
Anthony

 

[GMAX]

How big would the pump have to be to push water that distance? Not mention temperature swings in your open to the elements garage. Seems like a problem to me.

 

[slavearm]

Not as big as you think. You just have to make sure you have some means of gravity feeding one side to maintain equilibrium.

 

[panic]

There will very little extra head in a horizontal run, mostly friction.

 

[Stoney Mahony]

What panic said. Figure out your piping distance and give me the PVC 1)size 2) Fittings(Kind of and # of), 3) height changes and I will calculate your friction loss for you and tell you what size pump you need. Then you can just go shopping . Temp swings probably wont be very big on that huge of a tank, especially in England (unless your heat waves keep up). Just get a good heater if your garage gets really cold in the winter (I like process tech heaters for big applications like this).

 

[manderx]

i had a 25' run through my crawlspace then back up through the floor to the sump in another room. no problems. i'd insulate the pipes unless the temp difference works in your favor. and either try to have the gravity drain line slope go slightly upwards towards the sump, so that any bubbles that make it down there help push towards the sump rather than work against the flow, or add a vent to it after the first few horizontal feet to get the bubbles out entirely.

 

[AntsReef]

Thanks for the responses guys,really appreciated.
OK a bit more detail.
These are my initial thoughts but obviously open to change.

Tank will be on a 3ft high stand(negotiable) with double weirs. The pipe will be ABS hard pipe of 50mm(2") diameter. This pipe will drop to floor level,run for 6ft and exit through the exterior wall. It will then drop another 9" and be buried below ground. There will be a right angle and then run level for approx. 40ft where it will have another right angle and run level for another 30ft where it will enter the garage and,here's the potential problem, it will need to rise enough to enter my sump,say 30".
As the pipe will insulated and buried and the garage will be insulated I don't envisage the temp to be too much of a problem. It's that "lift" into the sump that concerns me as although the sump will still be below tank level I'm worried as to whether there will be sufficient flow to overcome any potential problem here.
thanks again,
Anthony

 

[AntsReef]

<a href=showthread.php?s=&postid=8091967#post8091967 target=_blank>Originally posted</a> by Stoney Mahony
What panic said. Figure out your piping distance and give me the PVC 1)size 2) Fittings(Kind of and # of), 3) height changes and I will calculate your friction loss for you and tell you what size pump you need. Then you can just go shopping . Temp swings probably wont be very big on that huge of a tank, especially in England (unless your heat waves keep up). Just get a good heater if your garage gets really cold in the winter (I like process tech heaters for big applications like this).

Hi,
I would really appreciate that. If the details in my post above are not sufficient,please let me know and I will be more precise,
thanks again,
Anthony

 

[Stoney Mahony]

Sorry, I forgot to ask what flow rate you are looking for out of your return pump (Will you be using this as you main source of flow or are you going to be using a closed loop of tunzes or something). Ill give you a couple options by this afternoon but I can be more presice if I have a better idea of what your looking to get out of your return pump.

 

[AntsReef]

<a href=showthread.php?s=&postid=8095050#post8095050 target=_blank>Originally posted</a> by Stoney Mahony
Sorry, I forgot to ask what flow rate you are looking for out of your return pump (Will you be using this as you main source of flow or are you going to be using a closed loop of tunzes or something). Ill give you a couple options by this afternoon but I can be more presice if I have a better idea of what your looking to get out of your return pump.

Hi,
I was looking for a turnover of around 3 1/2- 4 times.
I will be using sequence pumps(2 x 10000) for closed loops so the return pump is not a major part of the flow consideration.
thanks,
Anthony

 

[GMAX]

Two right angles? I will defer to the engineers working for free here. But right angles are a killer to flow rate. Water just does not like to go around corners. Any chance you could use 45 degree angles instead?

 

[Stoney Mahony]

If you use 90deg sweeps it doesnt kill ya too bad....

 

[AntsReef]

<a href=showthread.php?s=&postid=8095180#post8095180 target=_blank>Originally posted</a> by GMAX
Two right angles? I will defer to the engineers working for free here. But right angles are a killer to flow rate. Water just does not like to go around corners. Any chance you could use 45 degree angles instead?

I know right angles are a nuisance but because of space restrictions I have little choice.
Here's a very simplified plan:

thanks,
anthony

 

[manderx]

that's a *really* long run. i would be very worried about water going stagnant and funky if turned off for any period of time. how about building a small shed or greenhouse up against or close to right where the line comes out of the house?

 

[AntsReef]

<a href=showthread.php?s=&postid=8096247#post8096247 target=_blank>Originally posted</a> by manderx
that's a *really* long run. i would be very worried about water going stagnant and funky if turned off for any period of time. how about building a small shed or greenhouse up against or close to right where the line comes out of the house?

Unfortunately I am unable to build any structure and the garage is my only option if I intend to run a remote sump.
rgds,
Anthony

 

[AntsReef]

Is there no-one out there with a remote sump ?

rgds,
Anthony

 

[reefdood]

Many retailers do it. The LFS I worked at had two sets of 12 tanks setup maybe 75' from the sump. They two pumps, big pipes, maybe 2.5" diam. for the run, and split from there. I can't recall the exact pumps but they were monsters. Maybe a pool pump. I remember cleaning the internal pump strainers.