We bought a house about 2 years ago that has an aerobic septic system. Neither my husband nor myself has ever had one of these before so we don't know much about it. Our neighbors were trying to convince us to get rid of it without any sort of good explanation, but other than having the replace the sprinkler heads every so often it hasn't given us any trouble. Is there something about aerobic systems that make them undesirable versus a standard system?