u/trowayit

I have a heavy amount of calcium in my water and the pre-mist sprayer on my Neorest has become clogged to the point it no longer mists properly and is more of a steady stream of water going into the bowl water instead of misting and spraying the sides of the bowl. Are there replacement parts or servicing methods I can do on my own instead of paying the quoted $1200 for a service tech appointment?