I filled my pcp with a omega 4500 compressor and an alpha moisture filter. When I was done I released pressure from compressor and filter but my fill hose was still under pressure. It took me quite a while to shoot all the air out of my pcp. I've searched for some type of pressure release fill hose but haven't found one. Can anyone suggest a solution to this problem?
 
Does your Alpha filter have the upper bleed valve option? You need that bleeder past the PMV.
The air release on compressor relieves pressure up to the filter and the filter air release only relieves pressure inside filter but not the fill hose. I do need a pressure release on fill hose but I haven't found one. The problem is I have no idea exactly what to search for on internet.