View Full Version : mag drive question???

09/23/2006, 01:48 PM
Has any one had any problems running these brand of pumps externally??? The marine depot website recommends not running these this way, But i have seen people use them for there closed loop systems. I am planning to run all my pumps externally and was wanting to use the mag-drive line. Let me know what you guys think. Thanks again.

09/23/2006, 01:55 PM
all MD pumps MD5 and up are desinged to run either inline or submerged it dont matter weither they are in water or out and they do a wounderful job running them inline (wich i prefer to run them inline)

09/23/2006, 01:58 PM
Thanks for the fast reply, i was just a little unsure because that was what marine depot put on there website. Thanks again now i can order some stuff.

09/25/2006, 02:07 PM
I run both of mine, (12,7) in line. no problems.

09/25/2006, 02:28 PM
Sometimes they get leaky, but its nothing that can't be fixed. Most of the "don't run externally" things I've seen point to the weak impeller housing. The impeller housing can crack if you torque in the piping too tight on the input side (remember, threads are tapered!) or put too much stress on it.

09/25/2006, 02:37 PM
I hate mag pumps there so loud to me i have had 3 of them 2 7s and 1 5, i dont reallt like them so i returned them..im going to get a ehiem