need some info

[reefD]

do you guys think a mag 9 pump will bring water up about 12 feet to a display on the upper floor? helping my buddy to install a sump in basment right below the display about 12 feet from floor where sump would be to top of display tank. is a mag 9 strong enough? or should we go higher?

 

[Lakeside518]

Mags don't do well in high head/pressure applications. A mag 9 pump is only rated to flow 180 gal @ 12ft.

 

[Lakeside518]

A mag 18 is rated 825 gal @ 12ft head. I have 1 for sale in original box Never touched water-Brand new if interested PM me.

 

[reefD]

thats too much flow. the mags rate the flow at the max feet hieght. flow rate is lowered but not stopped with additional hieght. i dont want a high flow on this return only enough to feed over flow and keep sump under a low flow for propper macro and pod development. i think a mag 12 tops . the flow rate doesnt have to be high . the sump is an algea scrubber and needs a low trickle flow . the pump just has to be able to over come the over head pressure ...not keep high flow. any thoughts

 

[Lakeside518]

Could try the Mag 9 It won't be alot of flow so no worries there not with that head loss.

 

[reefD]

flow is not important as long as its more than atrickle! lol/ thanks for your input i think we will try a mag 10 and hope it is strong. the issue is i dont mind it being strong but will ease it back anyways so i just want to use most of its power without a valve if possible. thanks for your thoughts lakeside!

 

[Whale4Ver1.1]

David is the pump going to be placed in a sump ?

 

[reefD]

yes we want to place it submerged. will this have any bearing on the flow rate we choose? thanks

 

[fishtanker]

<a href=showthread.php?s=&postid=6960138#post6960138 target=_blank>Originally posted</a> by reefD
yes we want to place it submerged. will this have any bearing on the flow rate we choose? thanks

I believe the flow rates for Mag's are based in submerged applications. Running a Mag external greatly reduces flow rate, IME.

 

[reefD]

thats what i thought fishtanker...thanks that clears up what whale was checking with.thanks guys very informative!lol....