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bigben2k · 05-13-2003, 10:48 AM

Maybe because it's on the 12v line, it won't affect system stability.

I like the cap idea. Any idea what rating? Nexxo's pump draws 12 volts, and has a max power rating of 26 Watts, for a max amperage of ~2.2 amps. I know it's useless without knowing the RPM.

In the mean time, I found a spec sheet for this pump:
http://www.johnson-pump.com/JPMarine...IB-CM10_30.pdf (PDF, 20 pages)

Here's the flow curve, for all three variations:
http://www.johnson-pump.com/JPMarine...10_30_c090.htm

The good news is that this Johnson pump is the heavier model that Nexxo described, the CM30P7-1.

A quick chart gives these flow/pressure ratings:
3.3 feet @ 6.9 gpm
6.6 feet @ 5.2 gpm
9.8 feet @ 2.4 gpm

Max pressure: 5 psi: that's 11 1/2 feet, or 3.5 meters.
Max flow is 30 l/m, that's 7.9 gpm, or 474 gph.
That's a good pump!!!

05-13-2003, 10:48 AM	#14
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Maybe because it's on the 12v line, it won't affect system stability. I like the cap idea. Any idea what rating? Nexxo's pump draws 12 volts, and has a max power rating of 26 Watts, for a max amperage of ~2.2 amps. I know it's useless without knowing the RPM. In the mean time, I found a spec sheet for this pump: http://www.johnson-pump.com/JPMarine...IB-CM10_30.pdf (PDF, 20 pages) Here's the flow curve, for all three variations: http://www.johnson-pump.com/JPMarine...10_30_c090.htm The good news is that this Johnson pump is the heavier model that Nexxo described, the CM30P7-1. A quick chart gives these flow/pressure ratings: 3.3 feet @ 6.9 gpm 6.6 feet @ 5.2 gpm 9.8 feet @ 2.4 gpm Max pressure: 5 psi: that's 11 1/2 feet, or 3.5 meters. Max flow is 30 l/m, that's 7.9 gpm, or 474 gph. That's a good pump!!! __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101 Last edited by bigben2k; 05-13-2003 at 10:58 AM.