Can a union be installed sideways on a drain pipe?

[MikeC120]

Can a union be installed sideways on a drain pipe?
Or do they have to be vertical?

Thanks

 

[TeHGuy]

I see no reason why not.

 

[Bow]

Won't be a problem. I have done plenty of pool plumbing that way, on the pressure side too

 

[Vinny Kreyling]

Up, Down or Sideways - it all works.

 

[MikeC120]

Thank you