Browse Forums Flooring & Floor Covering Re: Open Shower Floor Drain Tiling/Grade/Drainage - OK or no 8Apr 24, 2021 7:04 pm Yeah I'd be pretty happy if that was mine, I've got the same type of drain in my shower, and that silver edge protrudes about 1.5mm above the tiles around it, so I can never get rid of the last 50ml of water pooling around it. Takes pretty much until the next night to fully evaporate, so I end up soaking it into the bath mat so it actually dries out properly. Re: Open Shower Floor Drain Tiling/Grade/Drainage - OK or no 9Apr 24, 2021 9:18 pm Thanks guys for all the responses. Althom What you've got there is some residual water due to surface tension. In order to drain that residual water you'd have to have a hell of a slope on the floor. Apart from 8 tiles in the middle, the rest aren't graded at all, so those aren't due to surface tension. I liked arcadeIt's suggestion to have a long slit drain along the wall, which I think would have worked better. I remember as a kid in the 70's, that all bathrooms had floor drains, and much smaller tiles that didn't need to be cut. I recall there being grading but not sure how far it extended out. Re: Open Shower Floor Drain Tiling/Grade/Drainage - OK or no 10Apr 25, 2021 9:05 am It is surface tension and that's precisely why it doesn't drain. There's not enough fall to overcome the surface tension. The fall you need to fully drain a room that size would make the room unusable. If those tiles are 300mm then some of that water is 1.2-1.5m away from the drain. At that point those tiles would have to be at least 60mm above the drain to ensure proper drainage but your floor would still remain damp. Re: Open Shower Floor Drain Tiling/Grade/Drainage - OK or no 11Apr 25, 2021 11:08 am Althom It is surface tension and that's precisely why it doesn't drain. There's not enough fall to overcome the surface tension. For technical interest only, it is caused by the mutual adhesive attraction of unlike molecules (and inadequate slope of course). The molecular cohesive force of water is what holds water together and the strong cohesive force at the water surface is referred to as surface tension. Surface tension plays no role in adhesion. Open plan bathrooms are designed for aesthetics, prioritising functional aspects is not in every designer's hand book. Another bathroom design flaw is the fitting of long hosed and low fitted hand held shower heads. Sooner or later, many are dropped. Why take the risk? Having the hose fitted higher with a sensible length will prevent the shower head hitting the tiles if dropped. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Staircases and sausages. Should thou wish to keep thy palate sweet for sausages, avert thine eyes from their crafting. 14 4591 Interesting. You have great clearance to damp proof course all the way around which is rare with so many cowboy landscapers and concreters. Is there sufficient fall… 2 2418 Yeah mine about 9 metres long and 8 wide with slope of 25% at one point but the end point of the outlet is past the side of garage and if he concretes allowing for… 4 4539 |