My toilet is clogged. The water in the bowl will eventually drain when I test flush it, but it takes a few minutes. The tub also drains slowly. The bathroom sink drains fine. I have tried plunging, toilet auger, the air pressure thing, snake through the clean out, and nothing has worked. I also checked the air vent on the roof and their doesn't appear to be any major obstruction. I'm at a loss. Does anyone have any other ideas? Thanks

It sounds like you have two separate problems. Let's take the toilet first.
Lets see if I have this correct. You flush, the water raises in the bowl, swirls around and then slowly goes down leaving the solids behind. Have I got it right?
I have one that most repair plumbers miss.. Look down at the bottom of the bowl. If there is a small hole, then that is a jet that starts the syphon action. If it's clogged the water will just swirl around and slowly go down leaving solids behind. Take your finger,(UGH! ) and run it around the inside of the opening. Over the years minerals build up and cut down on the syphon (flush) action. If it is rough or you feel build up, take a table knife and put a bend in it to get around the curve in the bowl and chip and scrap it clear. Next take a coathanger and clear out the holes around the rim. They start the swirling action. And last, check the water level in the tank. It should be 1/2" below the top of the over flow tube. And speaking of the overflow tube, Make sure the small 1/8" tube from the ballcock to the white overflow tube is connected so it discharges in it and that it's flowing when the ballcock fills. This is what raises the water level in the bowl. For a good solid flush they all have to work together. Fix this and we'll start on the tub. Hint: Be prepared to snake out the tubs drain line from the overflow. Regards, Tom