Kind of depends on the level of your main that your going to connect to. You want your slope from the drain to the main to be 1/4 inch per every foot of pipe. It can be more, but not less. Going under concrete, your drain needs to be 2 inch diameter, and they don't make 2 inch bathtub drains, so you will need to do some figuring to go from the 1 1/2 inch tub/shower drain to a 2 inch P trap. All of that takes up space. Michael
_____ From: blindhandyman@yahoogroups.com [mailto:blindhandy...@yahoogroups.com] On Behalf Of Shane Hecker Sent: Thursday, July 09, 2009 9:41 PM To: blindhandyman@yahoogroups.com Subject: [BlindHandyMan] plumbing question I've got a bathroom which has a sink and toilet. We're ading a shower and tub unit. What are the steps to install the drainage? The building is on a concrete slab, so I know concrete wil need to be broken up. How deep in the concrete does the p-trap need to be? Shane [Non-text portions of this message have been removed]
