DO NOT BUY the "Septic 3000" septic bacteria additive from Septic World! They have many recent complaints. They call from Washington State and are claiming that they moved their plant to New Mexico. Septic World called me to sell "Septic 3000" and claimed I bought their product before. The company I buy from; MillerPlante.net told me that Septic World is either posing as an employee or representative of theirs or is just going to rip you off. Their official web site is SepticWorld.net and is currently a blank web site.