Question for fuge/chiller/sump

My question is this would it be ok to pump water from the chiller and fuge to the sump then up to the tank. Right now I have two drains one for the sump and for the future chiller. The plan is to have the cool water running from the chiller through the fuge then into the sump and back up to the tank. The question is would this be a better solution than pumping the all three back into the tank seperately? It would seem to me more effecient with less heat using one pump. main sump pump can push 1500g per hour

 

That's what I do everything dumps into the sump then the water gets pumped to the main tank. There is no reason to run all three to your tank because it is all the same quality and of water.

 

We are setting up a new system and have planed it out so that all goes into a 75g sump with a single pump that supplies the equipment and the return to the tank. It has been recommended to me to have the Chiller Water return to the tank as that is the recommendation from some of the chiller manufactures....(though this recommendation is not in the manual for my Delta Star chiller)...it is not difficult to do and would not require another pump or collection point to achieve...

 

I would use one pump to reduce heat introduced into the system. Why make the chiller work harder than it needs to. Just make sure the pump is within the limits of the chiller after head calculations.