Posted 2/21/2017 19:38 (#5854787 - in reply to #5854230) Subject: RE: Tile Spacing
Scottville, 49454 Northwest Michigan
We have tight, clay soils too. Granted, they're probably different than yours. But for us.... anything wider apart than 30 feet won't cut it with our clay soils.
Always use four inch too. In our opinion.... three inch isn't less enough in cost to give up the extra capacity of four inch.