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.
People don't understand that in a swimming pool you can swim from one wall to the next wall, but the problem is, you can't do that in a quarry, said Jeff Rice. Quarries are one way people are cooling off in this heat, but many do not realize that quarries can be more dangerous than other bodies of water. The waters colder, you can cramp up easier, you'll have problems with swimming from distance because you can't touch the bottom, Rice said.