I was wondering if I should be soaking it in an acid/water solution. Does it really make a difference? Also, how do you feel about those automatic cart cleaners waterbear? I have seen good reviews on them here on the forum. Are they worth the 130.00 they cost? Also, I am curious as to how often I should be cleaning my cart? I was doing it every two weeks and was told that it was too often as it would lose some efficiency if cleaned too often. How do you feel about this? Thanks in advance.