Fan on radiators?

[natsuu]

would it be better or worse if, suppose we have a radaitor that has 3 fans on the radaitor, what if we had 1 pulling air in and 2 sucking out or vise versa, like the picture

[Atmos]

they'd be working against each other to a degree, meaning lost performance. 

[EminentSun]

For most cases which don't release air directly out, but have some sort of cover over the fans (and even to a lesser extent with more open cases) the radiator would be pulling in air it had just heated, severely hampering cooling performance.

[W-L]

6 minutes ago, natsuu said:

would it be better or worse if, suppose we have a radaitor that has 3 fans on the radaitor, what if we had 1 pulling air in and 2 sucking out or vise versa, like the picture

It's usually not a good idea since it tends to recirculate the air between the fans, unless you have a baffle separating the two sections. As for push or pull the performance is basically the same between the setups with push and pull being marginally better by a few degrees at best. 

[RadiatingLight]

just go with all fans facing one direction. there's really no reason to not do so.

[natsuu]

1 hour ago, Atmos said:

they'd be working against each other to a degree, meaning lost performance. 

 

1 hour ago, W-L said:

It's usually not a good idea since it tends to recirculate the air between the fans, unless you have a baffle separating the two sections. As for push or pull the performance is basically the same between the setups with push and pull being marginally better by a few degrees at best. 

 

1 hour ago, RadiatingLight said:

just go with all fans facing one direction. there's really no reason to not do so.

 

1 hour ago, EminentSun said:

For most cases which don't release air directly out, but have some sort of cover over the fans (and even to a lesser extent with more open cases) the radiator would be pulling in air it had just heated, severely hampering cooling performance.

so should i use push or pull? and could i clean the radiator with water like just rinse it in the sink and wait for it to dry, sorry new to water cooling but good in general pc

[W-L]

1 minute ago, natsuu said:

so should i use push or pull? and could i clean the radiator with water like just rinse it in the sink and wait for it to dry, sorry new to water cooling but good in general pc

Either Push or Pull will work it just depends on the setup you have and orientation, pull is popular though as it does make cleaning the rads slightly easier since you have direct access to the fins of the rad.