tiny rocks getting into fill valve

Hi Terry and all. I have a rock well, and tiny pieces of rock keep making their way into the fill valve and causing the toilet water to keep running. I can take the top off of the fill valve and dig/flush out the rocks and it solves the problem, but it keeps happening again eventually. Can I put a small screen in the water line leading up to the toilet? The pvc pipe is very small, 1/4" Will this mess up anything or stop up the pipe? Thanks

I would install a water filter on the main line feeding the house. If your getting the rocks in the toilet there in the rest of the system also.

John

thanks for reply, ......does anyone have an opinion on my original question though?

It will work, but you will still have to remove the accumulated rocks somehow.