Could not run proper systems test at this time. Tried to beat the rain but didn't. Talked with customer and they would rather have it checked as well on a day that it can be gone over completely and accurately. Rain delay, need to reschedule. 9/8 Through check out on 2 systems Noted former home across street has a lighter roof #2 is 3 ton for upstairs #1 is 2.5 ton dnstrs Noted dnstrs system has low charge, a leak is suspect RS for a leak search Upstrs system operations are within normal parameters with exception to air pressure measurements (RA - .45 / SA -.23) probabel marginal size return ducting, recommended E Z Flow filters as opposed to pleated