This is my first estate pipe http://www.ebay.co.uk/itm/271000254796?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_500wt_1063 (scroll down the page) it cost about $13.00 and I would like to know about cleaning, I've read somewhere about a salt mix that cleans and refreshes it, but has...