marinetech Ca reactor...

[fishface]

got a problem. just tried hooking this unit up and got a leak between the pump and riser tube, at the volute specifically. when i talked to Jason he mentioned to lube o-rings with silicone which i did but low and behold i've got myself a fairly substantial leak. i've already tried to remove the silicone to see if it made a diff but nada. any suggestions peeps?

[niloc16]

when the unit is apart can you see and hairline crack anywhere? what about burrs along the oring mating surface. if there is any burrs just file them down with a file. inspect the oring all away around to make sure it is perfectly round, if there is a flat spot anywhere replace it. sometimes when the unit is assembled the oring will get pinched or actually rip a piece of the oring off.