Pools, Spas and Hot Tubs - Pump Wet End GPH Ratings?

I bought a new 1hp 3450rpm single speed AOSmith motor/pump assembly for my indoor jetted tub. It does not seem to put out very strong from all the jets despite the rpm and hp ratings are the same as the original. I posted this awhile back and I'm just getting back to it. It was suggested that maybe the wet end pump might not be of a high enough gph rating for the tub?

How does one tell what rating it is, and is there in fact various gph levels for different applications for a 1-1.5 hp motor?

I'm at my wits end with this thing and just want to put it to bed.

Anybody out there?

How about a good website then?

It is actually the impellar that can be changed to pump differently. Not suggested as it could burn out a motor. Tha part# on the impellar is the only way to know what you got.

Is there a possibility the pool/spa shop sold me a pump setup for something requiring less water pressure than a jet tub? Could it be maybe for a pool rather than something requiring high pressure jetted action? I'm looking for some direction to head to fix my issue.

Still looking for info on wet end gph ratings. I'd like to replace the one I have to increase jet pressure.

????? 264 views and no one knows an answer?

You don't give enough information for an answer. A "pump" is made up of two parts. The electric motor, and the "wet end" (everything other than the electric motor). ANY brand of motor with the same hp will give you the same performance with the wet end you have. AO Smith is the brand of the electric motor, and has virtually nothing to do with the wet end. It's the wet end (and impeller) that determines the flo rate.

FYI. There's 2 aspects to a pump's water flow. Volume and pressure. You can have higher volume with lower pressure, or lower volume with higher pressure, or something in between...with the same hp.