If you live near a oil fracking area or a fracking sand mining area you may have run into this.
When familiar with why they use this sand you will understand what it does in branch and sewer
lines. It's fine and the granules are almost perfectly round.
Two excavators simply washing their clothes without shaking them out caused multiple blockages.
Proper cabling and a poor mans jetter the Blow Bag came through again.
Don't need no stinkin jetter on residential.
(and sectionals are better than drums, K-60 is Heaven sent, it never snows in May in Minnesota,
we all agree on politics and my dog is better than your dog)