Pump for Closed Loop

[Kashi]

I took some really good advice some months ago and setup my 125gal AGA in my garage to test out plumbing and my closed loop.
I have 2 genx mak4's, 1 for return from sump and other for closed loop. I hooked it up for the first time a couple nights ago and it is just to weak. I am splitting water into a Tee with sprinkler valves on each end driven by a tsunami. This part works great!! The tsunami alternates the valves back and forth and I have a manifiold on opposites ends of the tank. But the mak4 is to weak for the amount of flow I want.
Ok, I am considering the Ampmaster 3000 and wanted some advice from people using this pump in a similar setup.
I think someone is using this pump in a closed loop with SS's.
If I go with the Ampmaster, I will use 1.5" inlet and 1" out to my valves.
I have figured out thast my foothead is about 10 ft.
Will I get sufficient flow out of this? or do I need a high pressure pump like a Iwaki MD100?

Thanks

[tendar]

Go to www.dolphinpumps.com and you check on the amp master but I believe at 10' head you will get around 1800 gph you way want to go with the iwaki high speed. With a 1" outlet you will cut the water flow in half acording to thier web site with a max of 1560 gph at 0 head. To get max flow out this pump you pretty mush have to go with 1 1/2 in and out plumbing.

[Kashi]

tendar,

Thanks. I went to the website and emailed them a question: "What would be the max flow using 1.5" pvc in and 1" pvc out.?"That is a combo of the 2 flow rates that they talk about.
The Iwaki md 100 might be better choice accept is uses way more power at almost 400watts compared to 126 watts of the ampmaster.

I think I read in a post(s) that golfish uses this in a closed loop. Maybe he can tell me how much flow he is getting out of the ampmaster.

[Ltspd]

I am using a ampmaster on a closed loop. The head is around 6ft and I have it splitting into (4) 3/4 lines from the (1)1-1/2" line. I would estimate I am getting atleast 3000gph, and I think the ampmaster is rated 3600 @ 5ft of head. I do not have them into SS or sprinklers.

[golfish]

Kashi,

Yes, I have an Amp Master in a closed loop with two 1" Sea Swirls. I run 1.5" PVC about half way up then split off to 1" PVC. Total of head is about 6 feet. I would guess I'm getting about 2100-2300 GPH. Certainly no more because each SS can only handle 1150 GPH. This along with a mag 12 for sump return is more then enough flow for my 150 gal SPS Clam tank......

Mark

[Kashi]

I'm sold on the Amp master! could you tell me what kind of 1.5" fitting this pump has? I am now planning the plumbing part while I await the new pump and forgot to ask.

Thanks

[Ltspd]

Mine came with screw unions for both sides. The other side of these unions were slip fit.

[golfish]

I'm not sure how Paul has his setup. I used ball valves as the first fitting on both ends of the pump....

[acropora]

Another pump to look at is the new Sequence Reeflo pump
called the "Sting Ray". Similar to the Ampmaster,but it is a more powerful pump featuring a semi-transparent impellor housing and silicon carbide seals.