AFTER LOOKING AT THE HOME MADE REFUGIUM ON THE NEW POST, GREAT LOOKING JOB ON THAT. AND READING MANY ARTICLES. I JUST WANTED A "OLD TIMER TO EXPLAIN, IN LAY MANS TERMS, JUST WHAT IS THE BENEFITS OF HAVING ONE. OR DIRECT ME TO A GOOD ARTICLE. I'VE BEEN TRYING TO GET MY NITRATES DOWN TO "0" AND CAN ONLY GET TO "5". WILL THIS REALLY HELP .THIS IS MY MAIN REASON FOR GETTING ONE. IS IT VALID!!![]()