If the collectors have weep holes to allow moisture to escape, make sure the
collector insulation does not block them. The weep holes must be on the bottom or
back of the collector, so water cannot get inside (Figure 6-3).
Collector Weep Hole
Tighten all loose hardware, and replace any missing parts. Look across collector
arrays to find and correct misaligned collectors (Figure 6-4). This is one or more
collectors facing in a slightly different direction. It has been compared to the
appearance of butterfly wings.
6.1 MAINTENANCE PROCEDURES