This is an inquiry message about vent plugs in the 108th China Canton Fair. (这是一条买家关于"vent plugs"的询盘信息，来自第108届中国广交会。)Inquiry Message (询盘信息) vent plugs I just purchased a m53 to install and was reading the part about the vent hole. What are the two white vent (screw)plugs on the pump. One on the side of switch housing and one on top of the motor housing. I cant find anything about them on the website and was wondering if they should be removed?? Contact Info (联系信息) vince brooks 98603 Company: none E-mail: ppowdermeister@hotmail.com ppowdermeister@hotmail.com
