Slow Flush
#1
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Slow Flush
My main bath toilet works fine, my half bath toilet does not flush all the way (longest run to septic), plunged once and it worked once. I used an auger, nothing. I removed the toilet, ran the auger both ways through the toilet, nothing seems to be in there. I ran a hose down the drain to see if it would hit any objects and it appeared to hit nothing. I poured 5 gallons of water down the drain to see if it would back up at all, it did not. I replaced the "guts", cleaned the holes, ran the auger again and nothing. What should I do next

#2
Did this toilet USED TO flush normal? Just so we get THAT issue out of the way.
Have you checked for lime in the toilet holes?...like the rim holes and that approx. 1 inch round jet hole, if you have one? If these get all limed up, the toilet water may just swirl around and not go down right. This is not just theory. I have taken 100% swirl/no drain toilets and turned them into normal flushers by putting a quart of hydrocloric acid in the toilet bowl and letting it set for several hours...and periodically work it around the bowl and up under the rim with a toilet brush. A product like Santeen works excellent.
Have you checked for lime in the toilet holes?...like the rim holes and that approx. 1 inch round jet hole, if you have one? If these get all limed up, the toilet water may just swirl around and not go down right. This is not just theory. I have taken 100% swirl/no drain toilets and turned them into normal flushers by putting a quart of hydrocloric acid in the toilet bowl and letting it set for several hours...and periodically work it around the bowl and up under the rim with a toilet brush. A product like Santeen works excellent.
#4
Be VERY craeful using acid in your toilet. You said it was a half-bath so I assume the room is small. You need ventilation for the fumes from acid. I don't understand how the rim holes get cleaned out by pouring the acid in the bowl. It would have to be poured into the tank by opening the flapper and CAREFULLY pouring it in that opening. This would allow it to surround and go through the rim holes. Not all toilets have the 1" jet hole. Be careful and good luck.
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Didn't use the acid, because the holes in the bowl appeared to be clear of any sort of build up. But, did spent the afternoon on the roof clearing out the vent stack with a hose and hanger duct taped to it. Poured 5 gallons down the bowl and it went fine, not slow... Adjusted the water level in the tank and it works!

Thank you for your responses!!!
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I had the same problem, and I also noticed that the water level in other toilets in the house would fall a couple of inches when I flushed. The vent was the problem. The toilet when flushed sucks air through the vent to help carry the "flushed stuff" to the sewer, if the vent is blocked everything goes slowly as the system begs for air!!!!