not exactly high flow for a block

chewyboy · 01-16-2003, 07:29 PM

Howdy all, this question is probably way more complicated than it probably sounds. anyway cathars design and several of the clones depend or maybe with the assistance of a very high flow pumps work well. what if your pump isn't exactly the highest flow. for example what about a 185gph or a 320 gph pump. I have a very limited space for what i'm going to try and a smaller pump would work much much better but i'm curious how the lower flow will affect performance. thanks.

Since87 · 01-16-2003, 11:56 PM

The max head of the pump is going to matter a lot more than the max flowrate of the pump when you are using a restrictive block.

Cathar · 01-17-2003, 12:26 AM

I saw absolutely no noticable performance difference between an Eheim 1048 (~160gph) and an Eheim 1250 (~320gph) for the White Water. I think there is a difference, in the order of 0.2C, after accounting for the extra pump heat that the 1250 dumps into the water, but 0.2C is something that's hard to pick up even with a CPU die sensor as it's quite within the realms of error.

01-16-2003, 07:29 PM	#1
chewyboy Cooling Neophyte Join Date: Dec 2002 Location: us Posts: 75	not exactly high flow for a block Howdy all, this question is probably way more complicated than it probably sounds. anyway cathars design and several of the clones depend or maybe with the assistance of a very high flow pumps work well. what if your pump isn't exactly the highest flow. for example what about a 185gph or a 320 gph pump. I have a very limited space for what i'm going to try and a smaller pump would work much much better but i'm curious how the lower flow will affect performance. thanks.

01-16-2003, 11:56 PM	#2
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	The max head of the pump is going to matter a lot more than the max flowrate of the pump when you are using a restrictive block.

01-17-2003, 12:26 AM	#3
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	I saw absolutely no noticable performance difference between an Eheim 1048 (~160gph) and an Eheim 1250 (~320gph) for the White Water. I think there is a difference, in the order of 0.2C, after accounting for the extra pump heat that the 1250 dumps into the water, but 0.2C is something that's hard to pick up even with a CPU die sensor as it's quite within the realms of error.

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