pump for my 60g. tall

[scuba namena]

i have a 60g. tall display tank in the front room of my basement being feed by a sump and fuge system in the back room of my basement.
i am curently using a mag 9.5 as a return pump with a CPR overflow. the overflow can handle 800 gph. with all the verticle push, horizontal push, 90's, t's, outlets, etc... the pump is barley pushing water (it is pushing, just to low preasure for me and the inhabitants). since the over flow can handle more i want to step it up. i want to stay with a submersible though for ease (glass 20g. long sump)(dont want to drill). being in the basement , heat isnt a problem.

i am thinking about a mag. 12 or 18 with a ball valve to scale it back if need be.

what's your opinion in this situation???
is a mag 12/18 overkill for this system?
i checked flow charts, and my system does have a lot of head presure.
technicly and numericaly / according to the flow chart either should be ok.

what do you think???

 

[fcmatt]

sounds good to me. once you get past 1000 gph your selection
of submersible pumps really decline.

 

[bleedingthought]

I'm using a mag9.5 on my 75G and I throttle it back a bit. I only have one 90 elbow, though. I would say that it's pushing around 550-650GPH which is plenty. In my opinion, change your plumbing.

P.S. You don't have to go to 800GPH. Matter of fact, you should stay under it considerably to have that comfort of not pushing your overflow. This is very important.

 

[Len]

Get bigger and scale back with a valve if needed. If a 9.5 is barely pushing any water after all that head pressure, try the 18.

 

[scuba namena]

the plumbing now consists of about: 3 ft. vertical, 5 ft. horizontal, 1 check valve, 1 ball valve, 3 t's, 4 90's, 4 out puts. all 3/4.

the plumbing goes through the wall , from the back room(sump) to the front room(display).

 

[scuba namena]

idealy i should redo my plumbing, however due to the lack of current time and along with near future plans to buy a house and totaly redo the whole system, i want a simple solution for now .
mag 18's are on sale for about $100 - that seems like a cheap, simple solution.
with the new house and new tank - will come better planed plumbing with external pumps.

any comments or thoughts ???

 

[Len]

Go for the Mag 18 for now. It should be plenty of output for all that head.

 

[Anonymous]

the plumbing now consists of about: 3 ft. vertical, 5 ft. horizontal, 1 check valve, 1 ball valve, 3 t's, 4 90's, 4 out puts. all 3/4.

the plumbing goes through the wall , from the back room(sump) to the front room(display).

A couple of things jump out at me.

The check valve is a big flow restrictor, replace it with anti syphon holes if you can.

4 outlets will really reduece the entrace velosity of your water, you can try 3/4 x 1/2 reducers at the outlet to get a bit more movement.

You plumbing is not that bad.

You can do an external pump if you have the room, just go up and over the side. Like I did. Just make sure you prime the pump before you start up.

 

[bleedingthought]

the plumbing now consists of about: 3 ft. vertical, 5 ft. horizontal, 1 check valve, 1 ball valve, 3 t's, 4 90's, 4 out puts. all 3/4.

the plumbing goes through the wall , from the back room(sump) to the front room(display).

Ah, I see.

Try using flexible PVC when you redo it to eliminate the elbows. What are the t's for? And like Waz said, ditch the check valve and make your outputs smaller. You might be getting more flow than you think, by the way, but with the outputs so large you won't feel it. But still might not be enough.

Go with the Mag18 and see how you like it. Save the mag9.5 and it might serve you well if you change your plumbing!

 

[scuba namena]

thanks for the sugestions.
ill take them into account.
i should have been more clear , im basicaly just trying to add turn over , not necisarily flow.
so i will probably go with the 18 and ball it down if need be.
i dont think i want to reduce (pipe outlets) at all , maybe increase if anything.
the 90's are for up and over the tank edge.
i am using nano streams for flow.

 

[scuba namena]