The toilet in my rental unit was notoriously bad at flushing. We snaked the drain three times in the last week, and still the flush is very weak and doesn't clear the bowl. I opted for a new toilet as the existing one was 10 years old and has never been very good. Earl noticed the gerryrigged line running from the sink supply, and suggested checking the valve to see if that made the tank fill faster. It did. Earl was very quick, nice, and professional. Now the toilet is brand new and flushes in a flash, and I was able to remove the 4ft hose draped from the sink to the toilet.