Union size?

[mark freshwater]

Hi,
I have been doing some research for my sump plumbing ,
my overflow outlets take 1" pipe, ive seen people using 1" pipe with 1/1/4' unions and valves joined with couplers.
Is there an advantage to this?
Also could i run just 1/1/4' pipe and unions and just couple out from the 2 overflows or is this not correct?

 

[Reeferdood]

Nothing wrong with your plan, just try to always run larger plumbing for your drains than you use for your returns.

 

[mark freshwater]

If my outlets are 1" would I be better off running 1" pipe with 1/1/4" unions or just add a coupler and run all 1/1/4" pipe thru out ?
And yes my return will be 3/4"

 

[mark freshwater]

If my outlets are 1" would I be better off running 1" pipe with 1/1/4" unions or just add a coupler and run all 1/1/4" pipe thru out ?
And yes my return will be 3/4"

 

[Reeferdood]

1 inch should be fine but you can never go wrong going bigger either, your call. ;)