Horizontal Plumbing Run for Drain. Remote Sump

[S14Swap240sx]

Question in regards to if this is possible. Idea is bar room display tank, remote sump and filter area in my garage.. my house is on a crawl space, the garage is ground level, so a bit lower then the house, about 2feet lower..

on a 72x24x24 tank, drilled with a center overflow, on a stand roughly 34inch tall, meaning, from the drain to the floor would be roughly 5 feet.

If I ran that drain pipe right into my crawl space, so figure another 2 feet drop. 90 bend into a 30 foot horizontal run into my garage.

So in the end.. is a 7foot vertical drop for drain plumbing enough to flow water thru a 30 foot horizontal run?

is there some calculator im missing or guide.. been searching around with no luck

 

[dlplunkett44]

It will definately flow, however I would worry about 2 things. First, I would worry about the flow dropping too much in a long horizontal run like that. For this I would increase the size of the plumbing to decrease the resistance. Secondly, you may always have water in the horizontal pipe, even when the pump is off.

 

[crazzyreefer]

http://www.pipeflowcalculations.com/

I did the same thing on a large tank, I used flex pipe and it had a lot of restriction, use the calc to determine the right size piping, On the build we just completed, We use 3" due to our volume... on my system I found 2" to be restrictive.

 

[michaelkittrell]

Not sure how you could have a problem. The water isn't going to come back up the 7' drop unless the flow is really restricted or really high rate... thats a lot of weight pushing down from just the water... so its eventually going to run into the sump. I ran 15' on around 2' of net drop (from top of stand pipe to height of pipe in sump and never saw the slightest hint of a problem...

My setup was 2" PVC for my return down 4' horizontal over 15' vertical 2' and horizontal another 2' over the edge into my rubbermaid sump. I had a net drop of say 2' and pushed it through 3 90s without any draining issues. I ran 2500 gph (pump spec) through my display.

The only thing I was concerned about was air in the horizontal run and whether that could cause growth of crud (which is part of the reason I came up 2' on the other side of the horizontal run (also ran a T at one of hte 90s so I could shove a pipe cleaner through there if necessary. Pipe was clean as a whistle when i dismantled it Saturday after running it for 2 years.

 

[Adam13]

Run a full siphon on your primary overflow pipe. Much more efficient.

 

[sirreal63]

You should be ok, unless you are running a siphon. Siphons and horizontal runs can be problematic as they may not purge air properly after a restart.

 

[ca1ore]

Are you really talking horizontal? Even a small pitch will help.

 

[S14Swap240sx]

great, at least it gives me options for tank placement. I guess a few experiments and sample runs wouldn't hurt. still pretty undecided on where to put the tank.

 

[Mtwreef]

Has any one set up something like this I'm thinking about doing the same thing but not into a garage but back into the sump room through the floor but I will have drop on my run

 

[braid11]

I have a 240 upstairs with three 2" Bean Animal returns to a sump in basement,. There is about a 14' vertical drop, and perhaps 30 ft horizontal. Two portions of the horizontal have very little drop over about 6 and 12 ft.

Once it purges air, it runs perfect, with high flow rates. I think I had it at about 1500 GPH. But, on restart, it was very scary. Many times the DT level almost overflowed, and on one occasion it overflowed.

After much testing I now have it dialed in so that it purges before overflowing. I think I run about 800 GPH now.

Tom

 

[reefchile]

Hi,
So, finally what did you do?