Originally Posted by mybigdog
Are you using 1/4 per foot for patios or plumbing?
Not sure your asking me or not but yes 1/4" per foot on plumbing for the most part and 1/4" per foot on stuff that is probably 12 feet or less. On anything bigger we go 1/8" per foot. So on a 24 foot patio we would drop 3 inches. It seems like on the bigger patio's the water gets "momentum" where as on a short run it might not drain off as fast...