Posted by tubajake on May 14, 2002 at 10:35:01:
In Reply to: Re: Re: Question: piston or rotary valves? posted by ck on May 14, 2002 at 09:44:23:
Like I said about the piston noise, If it's noisy it's probably due to lack of felts. The only other thing that I could think of would be bad construction,the need to be polished, or the need to be cleaned. And I suppose I should have emphasized that I was speaking out of my own experience.