It's more common than you think, mostly on boats in salt water
on which the salt water
hasn't been rinsed out before the boat sits and/or the toilet isn't kept well lubricated. If you disconnect the inlet hose from the seacock, stick it in a bucket of clean fresh water
and flush the whole bucketful to rinse the seawater and salt
out of the toilet before you lay up this fall, you shouldn't have this problem next spring.
Poking the ball with a pencil eraser is usually all it takes to free it up.Once you've done that, stick your intake hose in a buck of clean water to rinse the salt
out of the system. If the mineral buildup is severe, clearing it out may require more drastic action.
The PH II should be rebuilt about every 5-6 years...yours is due. The correct rebuild
kit for PH IIs mfr'd after 6/92 is PHIICRK...the ones made before that use a different kit (PHIIRK). Be sure you get the right one because about half the parts
in each kit are not interchangeable. A single
use tube of SupeLube thick Teflon grease is included in the kits...use ALL of it--squirt it into the pump, then pump a few times to spread it all over the inside of the pump cylinder. You'll be good to go for a season. Next spring--and every spring--lube it again with the same stuff. Ace Hardware
carries it. A full tube of it will last you for years and is also good for lubing y-valves, pumps, winches and anything else that stays wet a lot.
If you can't free up the ball, call Raritan
tech support: 800-352-5630.