Joined: July 2004
||Posted: 31 Jan. 2018,10:48
Slot drains (not "slit") are all well and good as long as they are properly maintained.
Every time I see a failed slot drain, it's clogged up becauyse no-one has cleared onstructioons from the slot and no-one has run a rod-and-plunger through it to clear any silt.
With 'standard' linear channel drains, any onstruction or blockage is obvious becaus eit can be seen from the surface, but with slot drains, the problem often lies unseen below the surface, so never gets fixed.
When they are looked after properly - and all it takes is a once-a-year check - they are a great option for discreet drainage, and that's half the problem: they function so well (at first) that they get overlooked and forgotten.
Splash strips: I know they have their admnirers but I have never, ever liked splash strips. They do have their uses - as a 'drain' for single flag paths, f'rinstance, but when I see them used for draining entire patios or driveways, I know it's only a matter of time before the problems start, be it damp on the wall, incresed salt bloom on the masonry, failed render coats, saturated sub-layetrs or, most commonly, ponding becaus ethe damned things haven't been properly constructed.
When there is no alternative, then I'll give a grudging nod to a splash strip, but I'd always look for an alternative, any alternative, before considering their use on one of my projects.
Thanks for the kind words!
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