Do not attempt to adjust, test or make a repair if you do not have  the basic repair skills or if you do not fully understand the  directions provided in this web site. Furthermore, if your appliance,  device, project, object of repair or its components differ from those  described, you should not attempt the repair based upon the provided  instructions. If the manufacturer’s instructions differ from ours,  always follow the manufacturer’s instructions. Always wear eye  protection and protective clothing or gear, as directed by a service  manual or an install guide. When making do it yourself adjustments on  your home or business’ plumbing system there is more to think about,  than just turning the tap or tightening the pipe. What you don’t know  about plumbing, fixtures, and water, can hurt you.
  * Electric Shock can cause injury or death: Never assume the  electricity is off. Before servicing anything that has an electrical  device, disconnect it from its electrical source either by unplugging  the appliance or turning off the power at the breaker or fuse box. Mark  the service panel with a note so that no one will restore power while  you are working. After turning off the power to the circuit, test the  circuit to be certain that there is no power. Some devices can store a  hazardous electrical charge even when disconnected from an electrical  source, always discharge these devices before attempting service. If  you are unfamiliar with a device or its components, consult with a  professional before attempting service. 
  When working with electrical equipment wear rubber-soled shoes,  avoid damp locations and hold all tools by their insulated handles.  Never touch conductive surfaces such as pipes or metal bracing. Use a  non-conductive fiberglass ladder when working with electricity. Avoid  shorting electrical circuits. 
  Serious injury can result from sharp edges. When reaching into a  service area, cabinet or housing there may be sharp edges. Use caution  when reaching into something. 
  Always practice proper and reasonable safeguards as well as those  suggested by the manufacturer of the devices and tools you use. 
  Caution about Do-It-Yourself Plumbing:
  Putting up a couple of shelves is one thing, but trying to  do-it-yourself on your plumbing system can not only be dangerous and  expensive, but could also drop you in hot water with the law! Many  people are happy to do minor jobs like changing a leaky faucet but for  anything else you are best to leave it in the hands of the  professionals. If you do not know 100% what you are doing,  do-it-yourself interference with plumbing systems can result in serious  damage, expensive repair bills and potential health hazards.
  The do-it-yourself householder is subject to the same regulations  and controls as the professional plumber and everything connected to  water supply has to comply with statutory requirements. Minimum  standards for sanitary plumbing and drainage installations are laid  down by law in the interest of public health and safety. Noncompliance  can lead to prosecution and the possible imposition of substantial  fines.