I recently had the foot valve changed on my shallow water well... as usual, it blew a bunch of sand on restart. we let it run for five or ten minutes to blow most of the sand out, but still got a lot in the house plumbing.

all three toilets are out. two will flush if you fill the reservoir with water... the fill hose seems to be running fine, but the reservoirs wont fill. i noticed the filler tube isn't running any water... i'm suspecting sand in the valve. it's a plastic setup, so would the easiest thing be to just replace the whole filler valve and float?

the third toilet won't hold water at all. the filler tube is pouring water, but there's no fill. even if i pour enough water into the reservoir to flood the siphon, it just all drains. any ideas?

Thanks in advance.