Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 06-21-2005, 07:31 PM   #1
Aquarium Advice Apprentice
Join Date: Jun 2005
Location: Arizona
Posts: 30
Pump and Sump Question

I have an overflow rater for 300-500 gallons. What size pump should I use to pump the water back into the tank?

I was thinking of maybe a Mag5?

The tank is 75gallons, sump is 30 gallons, and the top of the tank is 5 feet up and 6 feet lateral from the pump.

SpikeAZ is offline   Reply With Quote
Old 06-21-2005, 11:40 PM   #2
Aquarium Advice FINatic
Join Date: Jan 2005
Location: Rancho Cucamonga, California
Posts: 819
What is the head height that you're pumping back up? In other words... how many feet does the pump have to pump water up? Also, how many water returns are you planning? 2? 4? As well, how many joints and elbows and unions are you planning? All of this affects the head pressure for a pump. A pump will not give you the same 100% GPH rating if it has to pump water uphill, through joints, etc).

Figure this out, then you'll figure out what pump you should use. With a 75, again... estimating with two returns and a simple plumbing setup, I would go with a Mag 7. (I have a mag 9.5 on my 60 gal and love it. It goes into 4 returns, meaning that there's 4 places in my tank where water is returned back into my main tank). HTH

I'll try to find a head pressure calculator online. This advice is just IME.

RLG2182 is offline   Reply With Quote
Old 06-22-2005, 06:04 PM   #3
Aquarium Advice Apprentice
Join Date: Jun 2005
Location: Arizona
Posts: 30
Head height: 4tf
Just one water return through a (supposed) Mag5.
The water is being returned via 9ft of vinyl tubing and an elbow.
The overflow has about 3 angles. one lateral, one towards the sump, and one down.
The opening of the overflow is a little over an inch.

With a mag7, wouldn't I overflow my tank (since the overflow is only rated for so low)?
SpikeAZ is offline   Reply With Quote
Old 06-22-2005, 06:59 PM   #4
Aquarium Advice Addict
Join Date: May 2005
Location: Piedmont, NC
Posts: 4,580
Go with the mag 7. It is rated at 480 GPH with 4ft head pressure. Thats not counting elbows and other resistance. Put a ball valve on your return line to get the return to match your overflow rate. Better to have a little to much than need more and not have it. If you are still worried about overflowing your tank just put your intake in the sump a little higher so it can not pump to much into the tank. If you do that make sure you keep a close eye on evaporation. I would be more worried about overflowing the sump than the tank, make sure you are sized correctly to avoid a wet mess.
*The fact that no one understands you doesn't make you an artist.
*If guns kill people...Spoons make Michael Moore fat.
Brenden is offline   Reply With Quote

pump, sump

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sump/pump Question guns286 General Hardware/Equipment Discussion 4 07-07-2009 10:44 AM
Sump and Pump Question David03 Saltwater Reef Aquaria 1 06-20-2005 08:26 AM
Sump/pump question JoeA Saltwater Reef Aquaria 4 01-12-2005 02:58 PM
sump and pump question jfrank Saltwater Reef Aquaria 4 11-07-2004 10:16 PM
Sump pump question fishyG Saltwater Reef Aquaria 3 07-14-2004 07:20 PM

» Photo Contest Winners

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 05:28 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.