Im very sorry as i have stepped on some toes and the sale thread got closed as it was not a used item or unwanted. All my items are tested for 3-5 days before sale to make sure all is working correctly. i will keep updates on chemical testing through pumps. Once again im very sorry to the owner and admin of this fine website. Just in case i get deleted, have a great summer and wish everyone all the best. kind regards Chris at CCS.