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Slab leak

Discussion in 'The DIY Room' started by basod, Feb 21, 2020.

  1. basod

    basod

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    I’ve got my repipe plan all laid out and Uponor parts ordered. Spent this past weekend divising a plan and cut plywood in the upstairs eve plus ripped up the old carpet at top of stairs to gain access to the upstairs bath.

    GF called me today saying water was coming up from the slab where the cold line penetrates the floor- it’s a new leak tiny pin hole above grade after the shutoff valve.

    I’ve pulled both master and half bath vanity and made drywall access holes at feeder under staircase. Buddy of mine is going to come help with the tubing pulls and fishing down stud bays.
     
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  2. basod

    basod

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    Got all the materials in but they screwed up on a couple tees and sent me a couple 1/2x3/4x1/2
    Instead of the 3/4x1/2x1/2 that I ordered for the kitchen sink and washing machine branches.

    Should have all the rough in done tomorrow then do a final hookup sometime this week
    Little tool porn
     

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  3. basod

    basod

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    Got everything rerun and hooked up today- no leaks!
    Took the opportunity to add a whole house sediment filter though I doubt it will matter now that the garden spigots are isolated from system.
    Realized I was gonna be short on 3/4 copper to do it like I originally planned so I dropped the PEX supply next to the water heater- came out decent need to cover them with insulation for uv protection.
    I’ll post some pics tomorrow after my knees recover.
     
  4. basod

    basod

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    Rerun of the supplies:
     

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  5. Semipro

    Semipro

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    You should consider that condensation may form on the cold supply lines. Now that they'll be in the air instead of the slab you may get some condensation, even on PEX.
    When I pulled down some drywall in our basement ceiling I found mold that resulted from condensation on the cold supply lines.
     
  6. basod

    basod

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    Yeah I’m planning on insulating all of the runs just need to order online and pickup in store as you can no longer enter Lowe’s here.
     
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  7. moresnow

    moresnow

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    The condensation issue is real in my basement. Just happens to be a unfinished area. Nothing like stepping out of a hot shower and having super cold water drip on ya:eek:
     
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  8. clemsonfor

    clemsonfor

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    Our Lowe's are open here. There essential. Imagine having something go wrong with your water and you can't use it or fix it cause Lowe's is closed??

    I had a supply line leak under a slab back in November. I noticed it because water was starting to run down my driveway and it hadn't rained in a day or so. I knew right away that black roll pipe was leaking. Well. I wasn't about to bust up my slab in my carport and I also had no idea exactly where it ran. I had always wanted to shorten my supply line from the street so I bought PEX and cut my old asphalt drive up and drilled my foundation below grade and ran new PEX in a protective PVC sleeve under my drive then filled over it and put quickrete back as a patch. I still have it run to the back of the house so I can use the hose back there but cut off the run that fed the house. My city connection runs into my well house and then into my house, or at least it did. I am on city water and have been the whole time I owned this house.

    I used half inch PEX at my supply connections and actually after (10ft or so after) my newly installed instant water heater all my hot runs are half inch, as that's the way it was plumed and I was not about to redo all that. I actually have better pressure because I got rid of the old water heater with cast fitting on the top that were almost have corroded closed inside. Also the crud in the tank and the shorter initial house supply line I guess. Also my guest bath has way better pressure because when the house was replummed to copper from galvanized pipe they left the last like 20-25 foot of hot and cold galvanized look best that fed that bathroom!! Cutting those out at the same time as the new main supply line install gave that bathroom way better pressure than corroded up galvanized pipe.

    I bought a SS band crimp tool off Amazon. I LOVE PEX. I resisted it for years saying it was more expensive cause of the tool etc. Well if your fixing one connection that's true but the lack of fittings needed in long runs and the time saved is worth it. I made my connections to copper with shark bite push on fittings. Yes there more expensive but I didn't want to teach myself to sweat copper which I have never done. I think the sharkbites were for me faster and for sure easier. There pricy yes but only used the press on fittings where I connected the PEX to copper lines.
     
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  9. mikeward

    mikeward

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    Redid plumbing hot/cold at my Moms and sons house using pex. Added manifolds and shutoffs, soldered adaptor to copper pipe- used stainless crimp rings worked great
    Ordered all fittings and pex online and had them in a few days.
    Way cheaper than box stores and they had more fittings
    Here are the two places I ordered from.
    SupplyHouse.com
    pexuniverse.com

    and some pics
     

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    Last edited: Apr 20, 2020