gallon jug caps in the 1 1/5 inch t's?
 

Thanks for all the help, Your site is great. I was wondering if you could tell me how you put gallon jug caps in the 1 1/5 inch t's? Any help would be great, Thanks.

If you use those large safety gallon caps then they will fit in 2 1/2 inch tee with a 2 1/2 inch thin wall piece of pipe perfectly. But if you can't find thin wall PVC like most people then just forget everything I just said.