Browse Forums Bathrooms and Laundry 1 Apr 02, 2012 1:17 pm We want to avoid penetrations through our slab, to minimise the risk of termites entering via plumbing, so we plan to have all plumbing going through walls rather than the slab. To get the shower waste water going out through the wall, we have come across 2 options, neither perfect: Build the shower up to leave enough room between it and the slab to have an S bend. This would make an inconveniently high step. Or have a plumber put an inline bladder made of rubber (or similar) that the waste water goes through under the shower, and which stops smells coming up into the shower, as an S bend does, but which doesn't need such a high step. The negative aspect of this idea is that I presume the bladders have a lifespan (the plumber who told us about it guessed 10 years), which then becomes a maintenance problem later. Has anyone got any other ideas of how to do this (or comments on the above options)? Re: Shower waste water exiting through wall 2Apr 02, 2012 4:04 pm Hi einadia, I'm not a pest inspector so I can't make comment on that level, but in my years of home maintenance I've seen quiet a few houses that have had termite issues. A pest inspector may have more of an idea on this but I've never seen one that has been infested through the pipe penetrations. I sort of feel your creating a rod for your own back here by going away from a process thats been pretty reliable from my experience, to gadgets and gizmo's that are almost certain to cause long term maintenance issues. Not only that, but the eyesore created by all the pipes coming out through the brickwork, i'd sooner take a chance on termites than have to look at them. IMHO I think you are trying to re invent the wheel. Cheers mgilla Re: Shower waste water exiting through wall 3Apr 06, 2012 9:12 pm Hello not sure what state you are in but here in SA you can run a shower untrapped(no s bend) to a floor waste gully in 40mm dwv to a maximum of 1.2m, now this is something that not many plumbers would recommend but it may get you out of your predicament. Assuming you are knocking up the existing slab this wouldn't be an issue to do. Regards Russ Thanks for your advice. So far i have not noticed any issues with doors and windows. Builder advised they will organise drainers to inspect 2 weeks ago but no further… 7 17855 If you have a floor waste, turn on your sink and put your ear down to the central floor waste and listen. If you can hear water running then they all connect there. If you… 10 12084 yep sounds good make the footing bigger to to allow for the pipe in the middle 3 7249 |