thud Guest Sep 21, 2004 #1 Yes 2 1_2 OD is too small, we tried it and were not satisfied, switched to 3" and problem solved.
hunter Guest Sep 23, 2004 #2 WE used black plastic pipe the kind for under ground drainage $12. for 100 feet per roll. We used 3 inch but may try 4 inch to see if it is any better. Good luck
WE used black plastic pipe the kind for under ground drainage $12. for 100 feet per roll. We used 3 inch but may try 4 inch to see if it is any better. Good luck