Some Information about Plumbing and Plumbing tools
A check valve is a mechanical device, a valve, that normally allows fluid to flow through it in only one direction. A double check valve is often used as a backflow prevention device to keep potentially contaminated water from siphoning back into municipal water supply lines. A clapper valve is a type of check valve used in or with firefighting, and has a hinged gate (often with a spring urging it shut) that will only remain open in the outflowing direction.
Some Plumbing DOs and DON'Ts
DO - If the water leak is below the toilet, first check the
water pipe where tank and bowl are connected together. If there
is no sign of water on the floor around the pipe, chances are
your toilet needs to be lifted and a new wax ring installed
(refer to toilet installation).
DO - If you go on vacation or are away from home for a few days,
always shut off your water supply to your home.
DO - Keep heat on where water pipes and drain pipes are located
in your home, when temperature is 32 degrees or colder.
