It's important to use an alternate with a hardness of greater than seven around the Mohs scale; in any other case, you may just be losing electricity by managing your tumbler. All this is possible because of a special tribological optimisation on the sliding surface in SiC mechanical seals: microstructures https://www.facebook.com/permalink.php?story_fbid=pfbid02KGWj8UX8Rrk4ogKd2gEe5HgZRg4VKfF2c7rBVhoySXPzAcAK4ofixkUYXwfAMirel&id=61562415773754&__cft__[0]=AZWS1AsmcRk3JzVrqdMgvZo384FyG5gZ_7SJAyZoMGFp5FIif75JhQ6xMiQvFNlJ32uFr1vl2g-_wcRxvbcPmc1AuuR6Xr58j610UFfvubyZiWGVeje45M0Jc6fIn7X8qYdkvgL1rAO0IqJ2pNQ0w2oclcuJujElHpSn1CNAZ74iudPlsQl4qC0-u-xXzrehrKnUUN-jx7KKIuQE0mOzqwYY&__tn__=%2CO%2CP-R