Originally Posted by
Yooformula
now that you posted that its a mcleod.......it might be due for a rebuild if you cant bleed the air out! They actually discontinued that model and upgraded to what was supposed to be more reliable and equivalent to the Tick master. That pipe dream failed and now they no longer make them but if you call 714-630-3668 or 714-630-2764, you can order a rebuild kit for it free of charge which includes a new rubber cup which is what usually fails in their master causing the air in the line.