30 Gal Kobalt upright model 221495 (LLA1683066), Serial H27410030A shows 150 PSI in tank, 125 in line but line only delivers full pressure for about 5 seconds before dropping off to near nothing. Gauges remain unchanged. Wait 5 to 10 seconds to get full pressure from line,which is delivered for about 5 seconds then again it falls off to nothing. Help! |