Thanks! My pump did not crack. It was user error. That pump cannot handle the pressure coming out of RODI FILTER, which I used to leak test reactor, but when I teed off from return pump in my aquarium, per instructions from Bill, it didn’t leak anymore it reached pressure balance on its own. Now it’s running smoothly. Thanks again for taking time to reply!
How long did yours take to balance out? I just got mine hooked up yesterday, and the top 4" union nut leaks like crazy. Well, most of the unit leaks, but the top is really bad. The nut is bottomed out, and silicone grease coating the O-ring, still just pours water out.