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Thank you for reading my post. I am an older DIYer and need to convert a bathtub to a shower for my aging wife. I have run into a plumbing concern.
I am converting a bathtub drain to a shower drain on a cement slab that has a cutout pit for the piping. I Left the old P trap and unscrewed the bathtub drain/overflow PVC pipe. To the remaining pipe that comes off of the P trap I connected a 90 degree PVC fitting then a 1 2/2 to 2 inch PVC pipe fitting. To cover the pit I built a shower floor on 2 by 4s with 3/4 plywood on top. This gives me an additional 4 1/2 inches of height to connect the PVC pipe to the new PVC drain. After the 2 inch expander a straight PVC pipe made the drain sit too high over the plywood floor. So... I used a 22.5 degree PVC fitting in the down position, then another one in the up position before the ninety degree fitting to the drain above the plywood floor. This is all done in the short pit area of about 14 inches.
With this setup the water goes down the drain but must rise (fill) the pipe to a height of about 3.5 inches before it moves to the old bathtub plumbing and P trap and out. I have created a small "trap" before the P trap which I did not want to do. I do not want to rip out the old P trap if I can avoid it but I also do not want to finish this job and have a problem. Any suggestions would be greatly appreciated. At this stage in life I should have gotten a professional but their price quotes were a lot of money (ten thousand dollar range). Thanks very much.
I am converting a bathtub drain to a shower drain on a cement slab that has a cutout pit for the piping. I Left the old P trap and unscrewed the bathtub drain/overflow PVC pipe. To the remaining pipe that comes off of the P trap I connected a 90 degree PVC fitting then a 1 2/2 to 2 inch PVC pipe fitting. To cover the pit I built a shower floor on 2 by 4s with 3/4 plywood on top. This gives me an additional 4 1/2 inches of height to connect the PVC pipe to the new PVC drain. After the 2 inch expander a straight PVC pipe made the drain sit too high over the plywood floor. So... I used a 22.5 degree PVC fitting in the down position, then another one in the up position before the ninety degree fitting to the drain above the plywood floor. This is all done in the short pit area of about 14 inches.
With this setup the water goes down the drain but must rise (fill) the pipe to a height of about 3.5 inches before it moves to the old bathtub plumbing and P trap and out. I have created a small "trap" before the P trap which I did not want to do. I do not want to rip out the old P trap if I can avoid it but I also do not want to finish this job and have a problem. Any suggestions would be greatly appreciated. At this stage in life I should have gotten a professional but their price quotes were a lot of money (ten thousand dollar range). Thanks very much.
