I constructed a rill for a relative over in essex coming up three years ago, and it now has developed a problem which i need to know how to fix
There are three elements. A top section, and two lower sections:
basically, the idea is that each section hold water, so when the pump is switched on, it doesn't take eons for them to fill, and the bottom pond doesn't drain!
the top pond has cracked across its width, all the way up to the brickwork:
the next level has done the same, but at its lowest point.:
the whole thing was built on reinforced rreadymix concrete, on top of butyl liner, then the brick work was done (9"), with a coat of waterproof render.
the question is, i have tried to chop out the sections and fill with new render, but it failed.(you can see in places i have done this)
How do i fix this problem. I assume i need to chop out the brickwork and re do it?
some more photos
Dan the Crusher Man
01442 212315 www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"
Something is wrong somewhere, you might assume a leak would wash away soil from under the base causing subsidence, i would think it'll never be right now. Dont know if fibreglass lining would work?
it looks like the concrete base has failed dan
tree root perhaps?
you could try cutting out the affected bricks and replacing but i fear the concrete maybe cracked
looks tidy as well
LLL
funnily enough tony there is a large tree nearby, and i did wonder if that was the case
If i kango up the broken patch, and re concrete and re lay the bricks, i just wonder if that will do the trick. How do i get a good bond between old and new?
I should add that a pond paint has also been applied
Dan the Crusher Man
01442 212315 www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"
if the concrete either side is good you could resifix rebar 300mm into it
either way
but i would be more concerned about what caused the movement
if there is a big ole root down there same thing may happen again
the bottom seems to be holding water
maybe just redo the brickwork for now and monitor
LLL
If it's losing water then it's usuallyterminal I'm afraid Rills are notorious for this and luck really needs to be on your side if a patch is going to work. Your only guaranteed fix would be to line it with rubber which if done well could still look good. Take off the soldier course overlay the rubber by 40mm and put the course back on. Glue it well and double tape any cuts and seams if you do it neatly then it'll fit well and shouldn't have to many creases. Normally it's the runs between the ponds that fail but if the ponds backs are broken then you can't fix that without starting again.
good news.
I fixed the top two ponds.
Chopped out all the render on the base, and up the cracked sides.
Re applied render, using Wizrad fibres in the mix.
Customer phoned to say its holding water!
Phew
Dan the Crusher Man
01442 212315 www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"
