Came out today because AC tech said our plumbing stacks were clogged so we priced out to run a hand rod, and ended up running ahead and ride down both stacks and physically blowing out both AC lines with my mouth. After this was done Both AC lines started flowing really good. Customer paid with card on file and we gave estimate to repair or replace a toilet in the downstairs guest bathroom and also an estimate to hard pipe both AC condensation lines to nearby that stacks. Customer will let us know what they choose to do and have us back out make a note if we need to rebuild the tank it is a 3 inch flush tank.