Sump Flow Rate Debate.

[mojoreef]

Could you explain why this would happen?

Yes. You were sleep walking again and peed in the sump instead of the tolit???

I caan see the temp thing, faster water would mean more water going down the drain line (which would cool it a bit ) and faster water might increase the surface exposed to air a bit more.

Don what is the gph on the skimmer and gph on the sump return prior to the increase.


Mike

 

[-=dieseldave=-]

I can see the temp thing, faster water would mean more water going down the drain line (which would cool it a bit ) and faster water might increase the surface exposed to air a bit more.
Mike

Bingo! This is the reason for the heat loss.

 

[Scooterman]

No my tank runs cooler with SLOWER flow not faster, I tested it again.

 

[-=dieseldave=-]

Scooterman, your system must have some interesting things happening.
1.) Air Temp around the sump and or overflows is higher then the water.
2.) When you up the GPH/GPM to your sump your overflow is turning into a siphon.
3.) You have more turbulence in you system at a slower rate of flow than a higher
4.) You have a good amount of friction and or compression in your pumps and pluming, adding heat at higher flow rates.
I bet at least one of these items maybe a factor in you system.