Pump question,Submerge or not

tootsiedaisy · 01-13-2006, 07:33 PM

I cant find it anywhere, Does a mag 5 pump have to be submerged or can I run it out of my sump

Geoff · 01-13-2006, 07:37 PM

it can be either. i have used them as either.

G~

tootsiedaisy · 01-13-2006, 07:39 PM

It says on the box not recomended for external use with saltwater, You have done it though.

Hogan · 01-13-2006, 08:06 PM

The problem I had was if the water siphon up from the refuge broke then it could not recover so I just keep it in the water no problems

Geoff · 01-13-2006, 09:42 PM

here is a Mag 12 powering my CLS. it is clearly above the waterline.

i also used a mag 5 and 7 for my skimmers. there is also a Mag 2.5 feeding my chiller. these are all external. i have only burned up one Mag. it was a Mag 9.5, i did not clean it for several months. it finally built up to much calcium carbonate in the impeller area and seized. this is a problem with any pump if not cleaned often. the warmer the pump the more you have to worry about calcium carbonate build up.

G~

ChrisPrusha · 01-13-2006, 10:34 PM

It will heat the water a tad if submerged, but not too bad!

tdwyatt · 01-13-2006, 11:44 PM

Quote:

Originally Posted by ChrisPrusha

It will heat the water a tad if submerged, but not too bad!

HEH HEH HEH!

You can say that about a 9, maybe even a 12, but the 24's even the 18's can raise the temp on 200-250 gallons (800 to 1000 liters) of water as much as 2 degrees F, especially if you have multiple applications in one water system...

three90s&125sump · 01-14-2006, 12:59 AM

I'm running all my mags external. Two 12s a 18 and a 36.

flashardy · 01-14-2006, 01:25 AM

I have mine Mag 5 out of the water...I just have to hook up the 9 when I get the parts.

CLH

Tim224DT · 01-14-2006, 06:34 AM

I have a mag 7 outside running my DIY skimmer.

Tim