I ended up with an extra hole, think it was about an inch and an eighth.
Greenlee screwup Mod.
Ended up covering it up with a speaker magnet. Works great.
Originally Posted by Norcoredneck
Close pipe nipples with caps. Valve partial and one cap off gets 250 ish for me. 2 caps off, partial valve gets 375 ish. Fine tune with valve. Make sense?