Telemarketer who spoke so fast that I did not hear the company he represented but he told me a good friend of mine gave my name to him to call.  He said he knew I had a pool and wanted to know how I heated it.  I asked him which good friend of mine gave him the referral, he said "Oh, it could have been a pool builder, a home contractor or just one of their many thousand satisfied customers...we just have such a great referral program".  He then started asking me questions about my pool.  I asked him again who gave him my name and he admitted he really didn't know at which point I said...sorry, I can't help or answer your questions and hung up.