I have bought the Delta 521 DST-A and I cannot see how I am supposed to fit the drain assembly to the drain pipe. First of all the drain asembly is a 1.25 inch pipe in diameter and my drain pipe is 1.75 inches in diameter. Also there are no threads on the end of the drain assembly piece so even if I had a connecting pipe how would it attach?. The drain assembly piece comes about 6 inches short of the drain pipe. I don't believe I am missing parts so what parts do I need to purchase at the store?
Thank you for your question. You will need to purchase a slip joint extension tube in either 1-1/4" or 1-1/2". You will also need to purchase a 1-1/2" to 1-1/4" reducing bushing. These are compression style fittings that compress onto the pipe to secure, not thread on. These are available at most hardware stores or home centers, not through Delta.
Date published: 2013-12-24