put it on ya stink pipe
I would install an AAV if
Install air bladder.
This is caused by negative pressure in the drainage/sewer system which can suck the water out from the toilet bowl. To prevent this from happening you must fit an Air Admittance Valve or AAV close to the toilet but above the overflow height of any nearby wash hand basin. The AAV allows air to enter the drainage system to neutralize negative pressure caused by flushing a toilet or letting the water out of the bath etc.
Kitchen sink needs vented out thru roof, but if not possible, some codes allow an AAV to be installed.
An air admittance vent is a mechanical sewer vent which allows air to enter into the sewage system but does not allow exhaust of sewer gases.
no. repair or adjust your water level valve.
This could be an indication of a blockage or you may need to install more venting lines.
You can use either a "Chicago Loop" to take care of the vent problem. Details can be seen here: http://en.wikipedia.org/wiki/Chicago_Loop_%28plumbing%29 Or another way is tio install an air admittance valve (available at Home Depot).
Remove the vacuum hose from the EGR valve. Pull the valve out of the air cleaner housing. Reverse the process to install the new valve.
Install a proper vent
A toilet has to be vented otherwise you are trying to force liquid against the air in the drain and it is pulling against a vacuum. It will never flush right.
that's because the diaphragm in the fill valve is damaged change the fill valve and you might just have solved the problem