Last October I bought 2 new "serviceable union ball valves" and decided to hold off on the installation until warmer,drier weather. Well, today I decided to install the valves but I'm perplexed. I can't turn the valve handle on either valve, and I can't separate the two pieces. I can unscrew the nut that holds the two pieces together, but I've tried pulling and twisting and that union does not come apart! Also I can't tell how the valve works since the inside is completly smooth. Any ideas how to proceed?
On to the pump... I replaced and installed the pump in October as well. It has been working fine except that in December it became very loud even on low speed. I have talked with the Pentair people and was told to check the impeller. Today I did that and it turns freely and I can't see any debris in there. I did see some rust on the shaft and the beginins of rust on the bottom of the motor casing. Could the rust be the problem? How can I prevent further rust? Rust killed my last pump and it was only 5 years old.