DC pumps:huge power savings, really?

[sphelps]

Originally Posted by mark

Sphelps, 4m and 4000l/h @ 85w still sounds to good to be true as that 3-4X the efficiency of the Reeflo

I run two of the waveline 10000s and I some what agree that perhaps the flow-rate is exaggerated but I also use to think the power consumption was higher due to how hot the power supplies would get but after measuring the actual power consumption to be right on the money (85W full power) I seem to think the flow rate is likely accurate as well. I'm not sure why the manufacturer would lie about it. However what the pump curve really looks is probably key here, I just drew a typical curve line to give an idea what it probably looks like, doesn't mean it's accurate. Worst case you could draw a linear line, I've never seen a centrifugal pump do worse than linear.

If someone hasn't tested these pumps before my next sump break down I might do a little test to see what these pumps actually put out but until them I'm pretty satisfied with manufacture specs being accurate.

[StirCrazy]

Dc pumps use less power for the same work. I know this is true because of what we were taught in ac/dc motors and i have seen the difference in my new furnace. We replaced and ac fan furnace with a dc powered fan furnace. I run my fan 24/7 365 days a year to try keep the basmemt and up stairs reasonably close in temps and what we have seen is a 20 buck a month drop in the power bill with no other changes.

So if you have the option of going dc do it. Aside from the lower power consumption the fine speed controle is better.
Steve

[mark]

contacted distributor (rlss) re: using DC10000 for basement return and told pump not designed for high head and would have very limited flow but Waveline is coming out DC pump with redesigned impeller.

Nice that they're are upfront about their product, know I'll be watching out for their new pump.

[nrosdal]

Originally Posted by mark

contacted distributor (rlss) re: using DC10000 for basement return and told pump not designed for high head and would have very limited flow but Waveline is coming out DC pump with redesigned impeller.

Nice that they're are upfront about their product, know I'll be watching out for their new pump.

here is a bit more info. I am pretty excited for the 6000/12000 to come.

https://reefbuilders.com/2013/02/04/...major-upgrade/

[Parker]

This thread might be worth a read regarding the Wavelines, not sure if the issues have been addressed.

http://www.reefcentral.com/forums/sh....php?t=2221830

[subman jr.]

I am using a dc5000 and dc10000 both internally and love them. The changes they made for the new pumps should fix all the things that needed to be tweaked.
-better housing and threads (it's not 11/4 npt its something close but not quite)
-improved impeller for better pressure while maintaining the low power consumption
-and able to be controlled externally.

With that being said I love the pumps and am very happy with them over all


****Subman's post not jr's*******

[Parker]

Originally Posted by subman jr.

I am using a dc5000 and dc10000 both internally and love them. The changes they made for the new pumps should fix all the things that needed to be tweaked.
-better housing and threads (it's not 11/4 npt its something close but not quite)
-improved impeller for better pressure while maintaining the low power consumption
-and able to be controlled externally.

With that being said I love the pumps and am very happy with them over all


****Subman's post not jr's*******

That's good news, I was considering a 10000 for a return pump.