Help Fix My Gurgling Toilet!

Question:

When I take a shower or run the dishwasher the toilet will gurgle and not flush correctly. Is the drain pluged? If I wait 2 or 3 hours all is good but when water is poured down the drain the noise (gurgle) still is there. No water collects in the tub when I shower and drain takes it away quickly. Here is a link with more information on gurgling toilets.

Answer:

Your drain could be partially blocked and the extra running water is hurting the flush. However, my guess is that the toilet is "wet vented" using the drains rather than a separate vented pipe. So, when the dishwasher or the shower runs, the vent for the toilet is being filled with water.