I am setting up my very first drip irrigation system and I have the general idea how it works. The one thing that I am stumped on is the supply line to the drip lines. I was planning on using an 1/2" supply down to a 1/4" supply line. How do I step down the sizes. I was planning on using a T fitting that reduces down to 1/4 but I can not find one anywhere. Any help would be great.