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  1. J

    Air admittance valve vs. venting

    This is hilarious. Are you saying you usually install them wrong? Because either that, or this statement makes no sense at all. Yes, let's be truthful. There are more reasons than that. Hmmm. So you're saying that to begin with, the AAV works by following the natural laws of physics, and...
  2. J

    Wax or Waxfree toilet seal??

    Not only that, but the trapway is usually larger. Nothing as annoying as a too small trapway. Over 2" is best.
  3. J

    Main Shut Off Valve Questions (w/Photos)

    Nope, have never heard of that in the places I've lived. So, they have to get in your home to check your meter? Sounds bananas, but I'll take your word for it :)
  4. J

    Main Shut Off Valve Questions (w/Photos)

    I've read your post a couple times, and I'm not sure why no one else has mentioned this, but I get the impression that you think that device is the city's meter. "I called the town and they're only responsible for the meter, not anything else in the house (I was really hoping they would be...
  5. J

    Replace or adjust this toilet tank assembly?

    You are talking about $12 worth of parts. Postpone that vacation and go for it my man!
  6. J

    Plumbing Student Projects

    I can't believe you're not including PEX. Or even Polybutylene repair. How to connect different types of pipes in a mixed/upgraded/repaired system.
  7. J

    Grout instead of thinset

    Concrete is not a great choice for a shower pan, but could loosely be included by what I called "mudding". A mortar base is standard and Kerdi is fine over that. Wood however is not an appropriate substrate for Kerdi. There is no such thing as Kerdi Ditra, so I assume you meant Schluter...
  8. J

    Grout instead of thinset

    The seam in the board doesn't matter. What matters is the waterproofing, including the cement board. If using Kerdi, leave the Kerdi a little long and attach it to the tub lip with KerdiFix or similar elastomeric sealant. The finished tile will cover this small area and the finished result is...
  9. J

    Grout instead of thinset

    Well, you need a Kerdi pan (they call it a tray), unless you want to mud one yourself.
  10. J

    cant figure out what to do with this shower valve

    I would definitely change the cartridges while I'm in there. It's not that expensive.
  11. J

    Grout instead of thinset

    I think it would be fine. Making good seams is more important for floors than walls. No one will be walking on your walls. Or maybe I shouldn't make assumptions, I'm not sure what's going on over there! But think about it this way. Kerdi, for example, is designed to go directly over...
  12. J

    Plumbing Code - What is it?

    "If you gotta ask...", then I assume you're not a pro :) I would recommend Black and Deckers "Codes for Homeowners" and "Code Check Complete". These will explain the basic codes in fairly easy to understand terms. From there, look up any local codes that might override these. But learn the...
  13. J

    Big Troubles

    Agree with frodo. With the exception that I would inspect things in this order: 1) inspect all around the floor area in the toilet. Find out if water is leaking onto the floor from the supply line, the supply valve, or one of the connections (at the supply valve or at the toilet tank). 2)...
  14. J

    Tiling over a painted bathroom wall.

    Yes but as FishScreener says, this is the new normal. The bathroom needs to be tiled as if it were a shower. Obviously, that means not tiling directly to drywall. However drywall is an acceptable substrate for some waterproofing products. If I understand you correctly, you are talking about...
  15. J

    Tiling over a painted bathroom wall.

    The advice for Kerdi is a good one, as that's the best waterproofing and will require the least change to your wall. By your questions, I can tell you think the tile and grout itself is the key to waterproofing. It is not. The wall must be waterproofed first, then it doesn't matter what gets...
  16. J

    Question about plumbing supplies needed for art project

    It would be easier to simply use this as the elbow, rather than that extra piece. https://www.homedepot.com/p/LDR-Industries-3-4-in-x-1-2-in-Black-Iron-90-Degree-FPT-x-FPT-Reducing-Elbow-310-RE-3412/100563923 Edit: OK I see now in the closeup that there are 2 reductions in size. If the smaller...
  17. J

    Shower mixing valve and continuation of supply line

    Actually a manifold w/ home run is easier and more basic in some ways. Less time usually, fewer joint connections = less money on parts, less time making connections, more reliability in terms of potential corrosion or leaks, and better water flow overall. You should seriously consider. It...
  18. J

    Bottom of fiberglass tub surround is cracking?

    And remember, you can have similar problems with tiling. The tile does not waterproof. First, install the correct tile substrate correctly. Personally, I use Schluter products, which in this case would be Kerdi. It is possible to waterproof behind the tile with other methods, but I make a...
  19. J

    Bottom of fiberglass tub surround is cracking?

    There was nothing in your post that suggested you knew that. Knowing the problem usually steers the solution in the right direction. So? Doesn't change any advice. If you know it was a joke, then why are you wasting time answering it as if it were serious? Everyone wants a cheap...
  20. J

    Water leak issue

    Hadn't thought of a leaking mixing valve, but the pressure from the water heater and city water on the cold side should be the same, right? So I don't get how warm water could leak into the cold water side. I also don't get how a leaky toilet could be related. Unless again, you're saying the...
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