Coralife Pressure Pump - Induced Head Pressure

1leftygolfer · 07/11/2010, 03:45 AM

Question - new 120g tank up and running. Noticed with the Coralife Pump 1740 running wide open, my tank's durso pipes can't handle the volume...lot's of gurggling. Yes, I have played with the durso pipe configurations; taller, larger air holes, elbow hole sizes, and found by using the in-line ball valve turning down (3/4 open) the return water flow - the gurggling sound is minimized. However, I am concern that I'm now inducing excessive head pressure thus reducing the life expectancy of the pump??

Anyone have insight?

sjm817 · 07/11/2010, 07:10 AM

The pump is far too large for that system. yes, you cam throttle it back, but you are better off running the right size pump.

1leftygolfer · 07/12/2010, 03:27 PM

Thanks for the reply.
Forgot to mention, and it may not matter to change your opinion, but the return pump is in the basement and DT upstairs...pump was a recommendation and in hindsight too much regardless of the head pressure or line loss factors.

sjm817 · 07/12/2010, 06:17 PM

The pump in the basement makes a big differnce, and yes you need a high head pump. I also run a basement sump.

I looked up the specs and it has a 39' max head. Its the same pump as a Panworld 200PS. That is a very powerful pump. As you have found out, much more than you need. It also uses 290W. I would replace the pumps with a smaller model. I know it stinks to have to do so. In that brand, the 790P or 1100P would be better.

07/11/2010, 03:45 AM	#1
1leftygolfer Registered Member Join Date: May 2010 Location: Atlanta Posts: 67	Coralife Pressure Pump - Induced Head Pressure Question - new 120g tank up and running. Noticed with the Coralife Pump 1740 running wide open, my tank's durso pipes can't handle the volume...lot's of gurggling. Yes, I have played with the durso pipe configurations; taller, larger air holes, elbow hole sizes, and found by using the in-line ball valve turning down (3/4 open) the return water flow - the gurggling sound is minimized. However, I am concern that I'm now inducing excessive head pressure thus reducing the life expectancy of the pump?? Anyone have insight?

07/11/2010, 07:10 AM	#2
sjm817 On Yer left! Join Date: Sep 2004 Location: Northern VA Posts: 18,777	The pump is far too large for that system. yes, you cam throttle it back, but you are better off running the right size pump. __________________ - Scott

07/12/2010, 06:17 PM	#4
sjm817 On Yer left! Join Date: Sep 2004 Location: Northern VA Posts: 18,777	The pump in the basement makes a big differnce, and yes you need a high head pump. I also run a basement sump. I looked up the specs and it has a 39' max head. Its the same pump as a Panworld 200PS. That is a very powerful pump. As you have found out, much more than you need. It also uses 290W. I would replace the pumps with a smaller model. I know it stinks to have to do so. In that brand, the 790P or 1100P would be better. __________________ - Scott

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07/12/2010, 03:27 PM	#3
1leftygolfer Registered Member Join Date: May 2010 Location: Atlanta Posts: 67	Thanks for the reply. Forgot to mention, and it may not matter to change your opinion, but the return pump is in the basement and DT upstairs...pump was a recommendation and in hindsight too much regardless of the head pressure or line loss factors.