How to Dry out Damp Floor under The House Due to Shower Drain Leak?

Recently noticed that the outside floor near the house garden bed was always moist no matter how hot it was. Went under the house and had a look and noticed the shower drain had been cut off from the pipe going into the gully trap (probably done by a plumber with the previous owner). So the last 3 months that we showered, all the water had been just sitting under the house rather than going into the sewer (painful when I realized).

Called in a plumber today to fix the drain. At the moment, I use a small fan under the house to keep the air circulated into the vents. How do I go about drying it out rapidly to avoid further dampness before winter approaches?

I am really worried about termites and the house stupms (concrete) sinking in and causing any further damages.

Comments

  • +8

    You need to rent some blowers, big ass fans that heat and circulate the air. One of our rental properties flooded the kitchen when a pipe fitting burst under the sink. It had been running for 10-12 hours before the tenants returned home and found the kitchen under water.

    The kitchen itself had to be replaced, floor covering stuffed, benches had warped and sagged at the kickboard level, all had to be replaced too.

    But the yellow tongue flooring, dried out without any issues, 48 hours with the blowers running under the house, and 2 in the kitchen on top of the floor, and all was good.

    • Thanks for the tips. Looking into Kennards to rent it for a day or two.

  • +4

    Sprinkle a tonne of catmate kitty litter over it.

    • Sounds good. In case rain water drains under the house, wont the litter get mushy and form into a clay?

      • Catmate brand starts off as pellets and changes to sawdust when wet.

  • +1

    We had a downpipe that was blocked and we could smell damp, when we checked there was a shallow lake under our house. We fixed the downpipe problem and the dirt dried out on its own. If the water was just from the showers, I would think, it is unlikely to undermine stumps etc; but have a good chat to the plumber about what he saw when was down there. IMHO the big thing to watch is mould, if that gets into your floorboards you are likely to have issues. It also depends on how much space you have under your house for airflow.

    I would be having a serious chat to the previous owner to find out the number of the plumber who did the work for him, sounds like a decent case for compensation.

    • The plumber that'd be responsible did work for the previous owners, not OP. Only the previous owners would potentially have any claim against those plumbers.

      • Then the OP may have claim against the previous owner. Would be something to look into if it looks like there is an ongoing problem.

        • Yeah, but operative word is "may". And even that's unlikely - most sale of land contracts include a "you accept the property in its current condition". Which would include things like having a shower drain that's not connected to anything - onus would've been on OP to do a building inspection.

          • +1

            @HighAndDry: If there is material damage then it still might be worth a chat to the ACCC, but you might be right; it does get a bit "muddy" here - excuse the pun.

        • Not unless the previous owner was the builder. Once you buy a property you're responsible for it, problems and all. That's why you need to get your own building inspection before buying/bidding that should reveal issues like this.

          • +1

            @[Deactivated]: The building inspectors don't, necessarily, pick up all the issues, anyway. This really is an area ripe for law reform; every property should have an inspection report as part of the vendor process. It is crazy we get better protection for a $10 shirt than a million dollar house.

            • @try2bhelpful: Yeah that's right. Our building inspector did mention the dampness but did not really pick up on the plumbing etc. Unfortunate I guess.

              • @metalslug: Yeah, I mean theoretically you might have recourse but IANAL and I'd expect most building inspectors to get out of being liable. Once they've mentioned the dampness I guess that gives them, even more of an out as they could argue you knew about the problem, even if not knowing what caused it. Still, if it hasn't caused serious damage yet the fix is probably not too hard.

  • +4

    We had this one - the next door neighbours house was being renovated and the builder didn't connect the downpipes for two weeks during which there was a massive storm so all the roof water went under our house. The builders insurance hired blowers from kennards (https://www.kennards.com.au/blower-dryer.html). They were under there for a week - I made them connect the power to next door not mine…

    • +1

      I love the idea of using next door's power. You sir/madam are a true Ozbargainer.

  • +1

    Worth checking if this is the shower drain (major issue / uncommon) or just the bathroom floor/overflow drain (it's pretty usual for these to just be directed under the house in many older buildings as they're not expected to see much water or water very often).

    • Yeah, will have to look into it further. Will get the plumber to check it out. Its a pretty old property built in the early 80's.

  • +1

    It'll dry on its own. Give it a month or two

  • put it in a bag of rice.

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