Hey everyone, new to the forum and looking for some assistance. So here is the short back story. One day my toilet for the first time clogged, maybe 2-3 weeks ago. It was an easy plunger solution but for the months I have been living there I never had a problem....until last weekend. Same situation, flush the toilet and clogs but water eventually goes away after a little time. Plunger solution didn't resolve it this time but since it didn't seem like a big problem at the time and was going away for the weekend I figured no harm to hold off until I get back. Fast forward to coming back and I rush to the bathroom from the car after the trip to take care of business forgetting the situation and that's when trouble happened. Toilet horribly clogged, horrible smells, it was hard not to gag. After 2-3 hours of manually cupping out the water and flushing and plunging it seemed like I had a bigger problem then I was hoping to have. Did the dishwasher soap and warm water and nothing, used a drain snake and nothing. So finally did a combo of warm water, plunging, flushing, cupping out the water, put in warm water and plunging and like a God send the water flows through! Patting myself on the back I clean up and go back to life with my precious toilet that I wasn't going to take for granted again. Like my body knew it was safe I had to go, so I go, drop some, and before I wipe I flush and like a never ending nightmare it clogged again. This time it just took a few plunges and it cleared but I know with the way it's flushing and the water fills up half the bowl and then drains it that it will easily clog again. I need some advice on what I can do to try and resolve this. I tried a snake but with the way my toilet is it isn't working. I don't know what toilet I have but it's tankless and the water flushes towards me rather then away if that makes any sense so when I try and use it it gets stopped within a foot. I have tried dishwasher soap and warm water before so I don't know if I should use it again or it's just a lost cause. I was thinking of getting CLR and draino max buildup remover from Home Depot to try and resolve this. Any advice would be greatly appreciated.

Hello I replaced both seats new, replaced both stem assemblies new, I even replaced the washers that came with the stems. Faucet is still dripping. Seats came out easily and went in smooth. So not stripped that I am aware of. Put some pipe dope on seat threads just in case. Still dripping. Any ideas??