Have a 1hp two speed Hayward SuperII (it's a Leslie's rebadge to be exact) pump. End of last season pump developed a "rattling" noise on low speed and flow went way down. Opened it up to find the diffuser housing had a small hole worn thru it where the impeller ring sits. Impeller snout was also worn. Checked motor shaft runout with a dial indicator and it's true.
Ordered new impeller (SPX3007C) , diffuser (SPX3000BN), and impeller ring (SPX3005R)
The new impeller ring does not fit tightly in the new diffuser. Is this correct? Yes, the flange side of the impeller ring is facing the diffuser
I've been inside a lot of standard Super Pumps but this is the first Super II I've had. The better hydraulics of the SuperII really make me want to keep it.