1-1/2” pvc below and above ground. Can I use 2” from pump to filter

[richmgreen]

The title pretty much says it all. Lol. I am going to connect a new filter. All my plumbing is 1-1/2” . However the “out” on my pump too has 2” opening and the “In” one on my new cartridge filter (Hayward C4030) has a 2” opening. Can I run 2” pvc from pump to filter even though all else is 1-1/2”? Or should I use a 2” to 1-1/2” reducer to run 1-1/2” from pump to filter to match rest of system ? Does it matter ?

Thanks
Rich

 

[PoolStored]

Will make no perceptible difference. Hook it up however you like.

 

[Jimrahbe]

Rich,

It will make no difference one way or the other..

Thanks,

Jim R.

 

[richmgreen]

Thanks ! Appreciate the help. One more question.

With my existing filter, when I originally screwed the fitting to to the top of the pump, I constantly had a small leak. Tried pipe tape, then used T plus 2 thread sealant. Tried many times but always a small leak. Pool company stopped by and put a new fitting in and no leak. Ugh. Maybe I cross threaded it trying so many times.

Now I will be putting a new fitting in to plumb new filter. What can I do to insure there is no leak when I thread the new fitting into the top of the pump.?? Not sure what pool guy used. I definitely don’t want to have to call him again. Lol.

Pictures are of old filter. New filter not arrived yet. But it will have in and out in front and has a 2” fitting to screw into filter. Can I not remove exiting hose from pump and just bend it (upside down U shape and connect to front of new pump with screw clamps?

Thanks
Rich