Some Information about Plumbing and Plumbing tools
A chemigation valve is an apparatus designed to protect water supplies from agricultural chemicals used during chemigation, the application of chemicals such as fertilizers and pesticides through irrigation water. Most chemigation valves consist of a spring-loaded check valve, a low pressure drain, an air and vacuum relief valve, and an injection port for introducing the chemicals downstream of the check valve. Many chemigation valves also have a 4 inch inspection port so that a person can reach inside and feel if the check valve is still functional. Some governments require the use of two chemigation valves installed in series if hazardous chemicals are to be injected.
Some Plumbing DOs and DON'Ts
DON'T - Pour a bucket of dirty water into your toilet; may
contain scrub rag.
DON'T - Pour hot water into toilet; temperature change will
crack the bowl.
DON'T - Put any type cleaning device into your toilet tank.
DO - Just clean by hand.
DON'T - Hang wire type odor tablet in toilet bowl.
DON'T - Put a brick in your toilet tank to save water