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Since87 · 08-08-2003, 09:50 AM

The showstopper for me is that one of the likely failure modes is leakage.

This pump could be used in series with a small magdrive pump for backup, but the magdrive pump doesn't help, if the Johnson pump manages to leak too much water.

The noise definitely exceeded my tolerance threshold when I tested Koslov's pump, but then I didn't run it long enough for the brushes to wear in.

Edit: I do have to add though, that if someone understands the drawbacks and considers cheap performance to be the primary consideration, these are certainly worth consideration. The power of these pumps is impressive compared to a magdrive of comparable size and/or power consumption.

08-08-2003, 09:50 AM	#217
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	The showstopper for me is that one of the likely failure modes is leakage. This pump could be used in series with a small magdrive pump for backup, but the magdrive pump doesn't help, if the Johnson pump manages to leak too much water. The noise definitely exceeded my tolerance threshold when I tested Koslov's pump, but then I didn't run it long enough for the brushes to wear in. Edit: I do have to add though, that if someone understands the drawbacks and considers cheap performance to be the primary consideration, these are certainly worth consideration. The power of these pumps is impressive compared to a magdrive of comparable size and/or power consumption. Last edited by Since87; 08-08-2003 at 09:58 AM.