GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
You can use Merc or VP, and if intrusion was caused by rotted out mans/elbows, then that is just time. If it happened do to ingestion form exhaust, then may need to increase riser height if space is available