Steel is the most common material for spring washers due to its ease of process and its high tensile strength. Chrome vandium alloy is a higher quality steel with a good through-hardening capability; it is used to make very thick spring washers.
How to Prevent Swimmerâs Itch. Thereâs no cure-all to eliminate swimmerâs itch. The negative symptoms are, ironically, a problem of our own immune systemâs making, and short of abstaining from swimming altogether, thereâs a risk of getting swimmerâs itch in a Northern Michigan lake.
9 comments: Another reason to wear a swim cap is when you are swimming in open water and there is a danger of being hit by a boat or a windsurfer's board, a brightly colored swim cap will make you more visible and decrease the risk being hit. Always wear a swim cap when swimming especially in a pool from a hygiene perspective.