Browse Forums Bathrooms and Laundry 1 Oct 16, 2013 1:24 pm Hi, Sorry, not sure of the technical term right now. Have a quick question. I have overflow drain holes in my bathrooms and in the laundry. I thought (by law) that these pipes had to be connected to the normal pipes so water would be continually flushed when shower runs, sink emptied etc or it would smell. Mine are not. I dropped a small piece of paper and it has been there for weeks, still sitting on top of the water. I was told that if water is not flushed, it will evaporate and cause smells. Pls can someone me of the 'rules' before I kick up a stink! Thanks Re: Bathroom Floor overflow/drainage hole 2Oct 16, 2013 3:30 pm Don't stress, it sounds like there is an S bend below. Similar to what's under your sink. They are used to stop smells! Be very careful to who you listen to as what you have been told sounds totally wrong! Cutting Edge Kitchens and Cabinet Making http://cuttingedgekitchens.net.au http://www.facebook.com/pages/Cutting-Edge-Kitchens/290484196676 Mobile : 0419 430 575 PH: 9452 4772 Fax :9452 4772 cuttingedgekitchens@outlook.com Re: Bathroom Floor overflow/drainage hole 3Oct 16, 2013 3:35 pm Interesting, I've always thought these drains just held stagnant water, I'll be interested in any replies too. Build thread: viewtopic.php?f=31&t=65085 Re: Bathroom Floor overflow/drainage hole 5Oct 16, 2013 7:32 pm Hi, In NSW at least the laundry floor drain is sometimes connected to what is called a "dry waste", in that it is not connected to the sewer, but simply runs to the outside wall with a screen or flap to exclude vermin. This is because the drain does not often carry a large flow. The bathroom floor drain however is usually paired with the shower drain or a bath drain, UPSTREAM of a water trap to exclude smells. So you may not see a water surface immediately under the floor drain grate, but there should be one a bit downstream. Cheers Re: Bathroom Floor overflow/drainage hole 6Oct 21, 2013 5:20 pm Update: Called Plumbing industry assoc and they say it must be 'charged' and water must flow out. So I went home and tipped a bucket into the hole and yes, it does flow out (so at least if bath overflows, it wont drown my carpets!). However it has been suggested that the outflow pipe is too high which is why it does not flush and refresh. So I will call and check again with them. May vcen lay a complaint with the association and they will investigate as this plumber has very low standards and he has been back several times to fix virtually everything he has worked on ! Re: Bathroom Floor overflow/drainage hole 7Oct 21, 2013 11:07 pm Dare I ask, does it really matter??? Our old house had water sitting just under all the floor drains and we never had a problem with stinky drains. Build thread: viewtopic.php?f=31&t=65085 Much a do about nothing. You can see the fall heading to the actual drains. Stormwater ingress will be minimal and it's far better to have the top sitting flush rather… 12 5197 can’t tell from the photo, a tie down rod will be 12mm, is it a steel beam? he should be able to work it out 1 3372 Water this close to the slab edge or under the slab can cause slab heave or subsidence and is potentially a serious problem especially on highly reactive clay soils. Over… 6 2991 |