Our house comes with those low flow toilets. Not our choice, it's just what the builder uses. We had our walk through today with one of the higher ups in the company. He told us to flush twice for at least a couple of weeks. I don't even think he's a fan of the low flow toilets.
Yep we got one of those &#^@%@ low flow toilets when our old one cracked. Two weeks I had that &#^@%@ thing and I had a stopped up main pipe. Had to snake it out. Nasty shit. Literally. Least it was my shit.
Now I always put some water in the tub whenever I got to take a dump. As soon as I flush, twice, I open the drain on the tub. Problem solved. Even she who is the omnipotent one does that now cause she helped me snake it out.
Thing that gets me is 100 yards north I have one big damn river where our town gets our water from but the imperial fed gummint has decided cause out west they are using too much water I got to damn suffer.