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Old 09-17-2003, 10:13 AM   #11
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I like littlegiant pumps but they are not submersiable like the mag. I have the 4-MDQX-SC and it is reported to have a max head of 17' with a 1" outlet. Its priced at $130.00 at petwarehouse.com The little giant 4-MDQ-SC is very simular the the pump I have but its max head is 24' and costs the same.

A check valve would probably be a decent idea as 15' tall water colum is a good amount of water. If your using this monthly for water changes I would be concerend with that water stagnating for the month in the pipe before its next use though.
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Old 09-17-2003, 10:38 AM   #12
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Well, the plan is that with the line plumbed to the drain, I would always be doing a drain out before pumping any water in. This should "flush" the line out before I pump fresh in. The check valve would be after the Y split but before the pump. Plus with this setup, it should be a breeze to do more frequent changes (weekly). I am shopping right now for a 30G water barrel that i will use for the set up
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Old 09-17-2003, 11:47 PM   #13
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http://www.championlighting.com/e/en.../blueline.html
I've used a couple of these pumps and have found them to be very good. It is an external pump though...16.5' shutoff head.
You could also use a couple of Mag Drives in series to get the water up there. Pumps in parallel double the flow...in series doubles the pressure or close to doubles it.
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Old 09-18-2003, 09:17 AM   #14
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What I have found out further is that I have to factor in the length of the horizontal pipe and the amount and type of elbows (90/45 etc) all of which contribute to calculating head pressure, in addition to the vertical distance. So now my new calculation means I now have to cater for a 25' head pressure. I am looking at the Iwaki MD55RLT, Blue line 55HD or Mak-4 pumps for this. Anyone have any specific experience with these pumps? I know that the Blue line and Mak-4 pumps claim to be Iwaki knockoffs. Are the Iwakis that good?? Thanks again
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Old 09-18-2003, 11:07 PM   #15
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The Bluelines were designed by an Iwaki engineer who left the company. I have installed three of them and I like them. The guys at Champion say that the Blueline runs a little quieter than the Iwaki. One interesting note about the Iwaki pumps (they are great pumps) is that the better ones have the Japanese motors. The American motors are louder and don't hold up as well (kinda chaps you doesn't it). You will pay quite a bit for the pumps with the Japanese motors though. I have never used a Mak-4.
My vote goes to the Blueline.
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