[QUOTE=beenthere;1915666]Never heard of booties removing contaiminates from a system.
Never heard a micron gauge helping a system be corrected or sized properly. I have made more people happy with booties than micron gauge. It is all rellavant to what is happening on each job. I don't live in a perfect world like you. I do have units that are going on 15 Years and no micron gauge and no manaul J. Thank God for luck. I own 2 micron gauges and use the wrightsoft F-280 program(that is the canadian version of manual J)but don't use it on every job. I guess I am what you call hasbeen.:eek