1) Where are these drains leading?
2) What is Your topographical elevation vs the nearest large waterway or reservoir?
3) What are the building codes there concerning this? Where I'm at in PA, code banned "in shop" drains, over 2 decades ago.
1) The drains will either be going to daylight with one-way caps on them, or going to a dry well.
2) We’re about a mile from a watershed lake.
3) I spoke to the plumbing inspector and building inspector, only building code I need to adhere to is minimum of 10’ from property lines and the bathroom plumbing needs inspected. Everything else is free game.
