When I flush the bowl empties and then right at that point it gurgles and bubbles loudly then fills normally this is a downstairs toilet upstairs is fine were on a well + septic water is mineral rich (gypsum mainly) any ideas? Thanks

Is the gurgling caused by the toilet drainage sucking or is it caused by air in the water supply lines? Being on a well, do you have a captive air tank or does the tank get waterlogged?

Is the gurgling caused by the toilet drainage sucking or is it caused by air in the water supply lines? Being on a well, do you have a captive air tank or does the tank get waterlogged?
Drained tank recently tough to describe this but Ill try upon flushing bowl seems to empty out gurgle madly then refill as opposed to normal toilet that never seems to be "empty" or bottom out before refilling its not supply lines pretty sure drainage sucking maybe all other fixtures seem fine

drained tank recently tough to describe this but Ill try upon flushing bowl seems to empty out gurgle madly then refill as opposed to normal toilet that never seems to be "empty" or bottom out before refilling its not supply lines pretty sure drainage sucking maybe all other fixtures seem fine

You are right about that. This is symptomatic to a clogged vent stack and the toilet has no air to draw down quickly. Is this on a slab floor? Sometimes a dirty arm will cause such a problem.

You are right about that. This is symptomatic to a clogged vent stack and the toilet has no air to draw down quickly. Is this on a slab floor? Sometimes a dirty arm will cause such a problem.
Thanks Ill check out the vent soon as I can