I have one toilet that has a sluggish flush. I have a septic system which was pumped and passed inspection in April of ’02. A plumber has plunged and used a snake on this toilet. Because it bubbles when it flushes, he suspects something blocking that isn’t coming loose with his attempts. My other toilets, sinks, and tub drain fine. The plumber thinks a new toilet would solve the problem. In addition to this problem, in just the last few days the bowl doesn’t fill much after flushing. I’d appreciate any advice, suggestions, guesses before I spend a lot of money on inspections. Thank you.