Simple mistake

when i bought the gun i knew it had a leak from bad o ring when i took apart the marker i ended up replacing all the rings and oiled up every thing when i aired up i noticed a slight leak threw barrell and marker would not hold cocked postion !!! after several tear downs and rebuilds and questions on pb nation (I HAD PUT GAS VALVE BACKWARDS) In manual it shows both sides of valve equal so i placed the smaller hole of valve toward the barrell and the larger toward the grip which was leaking air when i looked in my spyder manual it clearly shows bigger hole toward barrell when i switched out presto my bad *** marker is working !!!! again anybody that gave advise thank you
