I am currently using the Ampmaster 3000 - excellent pump. As you mentioned heat exchange is always a big problem for some pumps - especially the magnetic drive types (Like the Mag series). The reason being that the water comes in close contact with the portion of the pump that houses the coils that generate the magnetic flux to spin the rotor. Not only that but for submersibles you efefctively put that whole assembly in your sump and your tank/sump end up being a cooling system for your pump
I am very surprised by Brisc0's comments but I am sure he is speaking from experience. My own experience is that the MAG drive pumps are very noisy. In fact I currently use one to pump Water change water from my holding tank into my tank at water changes - and does that thing HUMmmmm. None the less - the ampmaster is very, very quiet - you will not hear it running when your standing in the room. One thing I hate about some tanks is that consistent Hummm - can't be fun for the fish either. The trickling water sound of an overflow - that doesn't seem to bother me, actually sort of a pleasing sound.
While the Ampmaster is very quiet it is also thermo-isolated so very little temperature transfer from the motor's coils. As for the 1.5 inch plumbing - use 1.5" coming from your sump then, if you are running a UV
and a canister each at 3/4, split the 1.5" output to 2 3/4" outputs and send one to the Canister and one to the UV
. Recall that the UV
rate should likely be lower than the full ability of the ampmaster 3000 anyway, in order to maximize its kill rate (i.e. you want an effective dwell time).
Using this approach you will maximize the flow rate of the Ampmaster which I think is somewhere in the 3000+ gph
at 0 feet head range. Figure in your application you might get about 1500 GPH
using the above approach (I approximated back pressure due to plumbing, canister, UV
, height, etc.)
One other nice thing about the ampmaster is that as you throttle it back, i.e. apply pressure as a result of it's application, it actually uses less power.
See the post in the forum Satwater, fish only named "Water Pump, Submersible"
If you do consider the Mag Pumps this is the MFG site:
Odd - they rave about all of the great features of these pumps but never say they're quiet.