At 01:13 AM 9/11/2005 , Uncle wrote: > > Dear Friends, > > In the Spirit of Spring, I have cleaned and reearranged the darkroom. > This is roughly akin to my late mother moving the piano around the house > every April, though the piano generally was not coated with dried fixer. Just > dried tears. > > In the move, I have re-sited my Jobo CPE2 processor in a place that is > convenient to use, but will make the regular draining of the water reservoir > difficult. I was wondering if I could leave the water in the bath, but treat > it with some sort of chemical that will keep it fresh - while not frizzling > up the heating element or ruining the plastic. > > As I hope to take delivery of a new CPA to do giant prints, any advice > will also be useful there. Ideas, please? > > Uncle Dick > > PS: I eventually escaped the piano though not without scars... September 12, 2005, from Lloyd Erlick, Maybe the chemical sold to keep a home humidifiers from stinking up would do the job. It's quite common for a humidifier to be left for a whole season (or longer ...) before it is emptied and cleaned. Here is the information I've found on the disinfectant used. The difficulty with a humidifier is that most disinfectant substances like chlorine bleach or Dettol or Lysol (which use phenols) is that they smell very prominently. The whole house can smell of chlorine or Lysol. The disinfectants sold for humidifiers don't stink up the place -- Where I live it's commonly available during the heating (dry!) season in half-liter bottles. At the end of the season it is sold much more cheaply to get rid of it, and this year I bought a half dozen bottles for three bucks each. A several-year supply. (Usually the stuff sold this way seems to be a three percent solution). ---------------------------------------------------------------------- Alkyl dimethyl ethylbenzyl ammonium chloride ---------------------------------------------------------------------- PAN Pesticides Database - Chemicals Home > Chemical Search Help | Feedback Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18) - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information Note: See Working with the Information on this Page section below for important notes about this data. Chemical ID Identifying information, including synonyms, ID numbers, use type, chemical classification, a link to a list of all products containing this chemical and a list of the top crops this pesticide is used on in California. Poisoning Symptoms Signs and symptoms of poisoning, first aid, and links to treatment information for this chemical. Toxicity Toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity. Regulatory Links to world-wide registration status as well as regulatory information for the U.S. and California. Water Water quality standards and physical properties affecting water contamination potential. Ecotoxicity Toxicity to aquatic organisms. Related Chems List of chemicals in the same family, including breakdown products, salts, esters, isomers, and other derivatives. Chemical Identification and Use for Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18) Basic Identification Information About This Chemical Chemical Name: Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18) CAS Number: 68956-79-6 U.S. EPA PC Code: 069167 CA DPR Chem Code: Use Type: Algaecide , Microbiocide Chem Class: Quaternary Ammonium Compound View Related Chemicals Additional Resources About This Chemical Class and Use Type See the Global Pesticide Resources page for many additional links. Other Names for this Chemical About Chemical Synonyms 069167 (US EPA PC Code) , 68956-79-6 (CAS Number) , 68956796 , 68956796 (CAS Number) , Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18) , Alkyl*dimethylethylbenzylammoniumchloride*60%C1430%C165%C125%C18 , Quaternary ammonium compounds, C12-18-alkyl((ethylphenyl)methyl)dimethyl, chlorides ------------------- ============================================================================================================To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.