Do you prefer to have a water pump inside or outside a tank?

[ckmullin]

Curious on overall opinion...so let's here it! Do you like to keep it in the tank or prefer to keep your pump dry and outside your tank?

Thanks!

[The Grizz]

My personal preference is to have them outside the sump so that they dont add heat to the water column.

[subman]

I've always run internal but thats always been because my setup wouldn't allow it any other way. I see what Grizz is saying but in my case I think the heat is a benefit as it just means my heaters run a little less. When I was running MH I really could have used external pumps.

[AquaPin]

My tank is in the basement, so the little bit of heat the internal pump generates is fine with me. Plus less hassle, the pump has a PVC going to a hose that returns the water to the tank.

[Madmak]

My big closed loop pump is external but all the rest of my small pumps are internal. IMO if the added heat is a negative thing for your tank, go external. If it is not and you have the space in your sump, go internal.

[lastlight]

anything that can leak I try to have in the tank or plumbed above the tank. Even my rodi unit is installed above my laundry tub so if it leaks its contained. I still flood my house all the time but this helps some!

[sphelps]

Originally Posted by The Grizz

My personal preference is to have them outside the sump so that they dont add heat to the water column.

I'm the opposite, internal to take advantage of the added heat

[lpsreefer]

Originally Posted by sphelps

I'm the opposite, internal to take advantage of the added heat

Agree if my heater doesn't have to run as much because of my pump I'm happy.

[kien]

My personal preference is to have them inside the sump so that they do add heat to the water column.

[Madmak]

Originally Posted by The Grizz

My personal preference is to have them outside the sump so that they dont add heat to the water column.

Red Deer is a pretty tropical place though so The Grizz might have heat issues there that we don't experience here in Calgary. Just sayin'....