How I moved an ABS shower/bath drain in basement concrete/cement. I changed the location of the drain using a jackhammer, and converted from a 1.5 inch drain designed for a bathtub, to a 2 inch drain for a new shower installation.
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P-trap is mounted backwards, the steep part goes under the drain, so the water will get good momentum, and the shallow end is easier to wash clean, reduces likelihood of trap clogs.
Thanks for the great video! I am doing a similar DIY drain project in Toronto - and I am wondering - since P trap is underground, can the water freeze in it? It looks like you live in cold climate too - how it’s been so far with this drain?
Hey fella, I'm pretty new to plumbing too. I was wondering how it drained for ya? I'm not totally sure how far away the vent needs to be and that's the problem im at right now
@@gregs_garage I had the plumbers rough in everything down there when I built. I also ran pex for in floor heating before the concrete guys came and put the slab in so I gotta be really careful with how much I chip out. 🤔
Or you can buy a jackhammer from harbor freight or Amazon for about $130 and you get to keep it for future projects. Beats the $80-100 daily rental fee and you don' have to kill yourself to rush through a massive project in a day.
Are there any other materials that could be used for backfilling? Is there any risk of the weight of those rocks damaging or moving the pipe underneath?
+Chris Hopkins You could use finer gravel/rock but the size shown in the video is common and will not damage the pipe. ABS pipe is pretty strong. Try breaking a piece. Also once the pipe is in the gravel It's pretty hard to move. The gravel is heavy and holds the pipe in place until the concrete is poured.
did you use Concrete or sand mix, if so which concrete did you use, I am doing a shower pan in my basement were I dug out cement and the pan I bought says do not use cement, use sand mix or mortar, i would like a smooth finish, I bought quickcrete professional grade cement
it was in the original location from new. I was able to re-use it after breaking the original concrete around it. You may have to improvise - maybe a large PVC or ABS fitting from a plumbing store? Or maybe cut a slice from a big (8-10 inch?) pipe or even a plastic bucket? worst case make a square box with 2x4's!
4" would be too wide to fit any standard shower or tub. Plus, making the pipe too big slows down the water flow, making it harder to clear stuff (like hair, sand, dirt, etc.) out of the trap. 4" is typical for toilets, which need the capacity, but you will have to use reducers to get it to 2" or 1.5", depending on your local code and the shower or tub you are using.
