What are the most common venting problems for toilets?

SOURCE: how to replace a commercial flush valve

These used to very simple but have become more complex as technogy evolves. I will give you the standard answer though.

First shut the water supply off to the aplliance (there is a little decorative cover on the valve that is attached to the water line coming out of the wall. It looks like a nut. Pop this cover off and screw the screw in remember right is closed and left is opened.)

Now it is only a matter of unscrewing the couple of nuts that attach the actual valve.

Most valves come with step by step instructions but even without them it is usually a 30 minute job or less. You will need a flat head screw driver, spud wrench, tubing cutters- to cut the chrome trim tube to size, and some pipe thread compound or teflon tape.
Thanks for using Fix Ya and if I can be of further assistance let me know.
Jim

SOURCE: toilet sounds like it is flushed or water filling up in the tank.

if the toilet has a 'flapper' is there slack in the chain connecting it to the flush arm? The flapper life is usually around 4 years or so - replace it if older.

SOURCE: New Pegasus Dual Flush Toilet Water does not enter Toilet bowl

There is a small plastic tube that comes from the fill valve and attaches onto the overflow tube on the flush valve. If no water is coming out of that tube, then it is clogged internally. You can remove the tube from the fill valve and take a small piece of wire or a straight pin to try and clear it from the outside. If that doesn't work, then I would recommend replacing the fill valve. They are inexpensive to replace. If you don't know how to get into the fill valve's internal guts at the top, then I would recommend replacement of the valve. One more thing, there also could be a water saver where the outlet is on the little tube I just explained. It is usually light blue, you can remove that and discard it.

SOURCE: Toilet will not flush

It sound like you have debris caught in the fill valve. Remove the top where the washer is and put your hand over it and slowly turn the water on to flush the fill valve. Replace the washer with a new one and then replace the top.

If you have the old ball and **** style, replaceing the diaphram is harder so I would recommend replacing it with a fluidmaster fill valve. Hope this helps.

SOURCE: dear sir/madam. when flushing toilet it takes a

Some water saver toilets are very problematic about not having enough water to thoroughly flush. Here are 2 things to look for:

First, after toilet stops running completely, check the water level. Most tanks will have a "full" line marked inside. If the water level is low, your fill valve will need to be adjusted.

Second, if the water level is fine, your "flapper" valve (very bottom of tank) may not be opening all the way. Watch valve as you flush the toilet. It should come up far enough to allow total unobstructive flow of water. If it isn't, adjust chain length until it does. Make sure there is a little slack left.

If neither of these solves your problem, you may have a partial clog that will need to be gotten out with a drain snake that can be purchased at any hardeware store.