Fish pond construction, brick wall strengths etc.
Discussion
Hi, I've got a pond sunk 3 feet deep into the ground at the moment and the floor around it is concrete maybe 5" thick. The triangular pond measures 10 ft x 10 ft and is a bit longer on the third side. I want to add a wall 2 ft high and add maybe 18 inches of additional water. I think that a double row of bricks tied together and bonded to the concrete should be strong enough to contain the additional water but some builders don't seem to know if this is the case or not.
Does anybody know where I can check if my plans seem reasonable or doomed to failure or has anybody built a similar pond? Thanks.
Does anybody know where I can check if my plans seem reasonable or doomed to failure or has anybody built a similar pond? Thanks.
7 newton blocks laid on their sides OR laid on edge tied to outer skin of standard bricks.
you can see lots of builds with pics here:
http://www.koimag.co.uk/forum/your-pond-build.html
will you be lining it with EPDM/butyl or GRP?
you can see lots of builds with pics here:
http://www.koimag.co.uk/forum/your-pond-build.html
will you be lining it with EPDM/butyl or GRP?
Boosted LS1 said:
Hi, I've got a pond sunk 3 feet deep into the ground at the moment and the floor around it is concrete maybe 5" thick. The triangular pond measures 10 ft x 10 ft and is a bit longer on the third side. I want to add a wall 2 ft high and add maybe 18 inches of additional water. I think that a double row of bricks tied together and bonded to the concrete should be strong enough to contain the additional water but some builders don't seem to know if this is the case or not.
Does anybody know where I can check if my plans seem reasonable or doomed to failure or has anybody built a similar pond? Thanks.
You aren't supporting the weight of the water. You need to contain the sideways thrust. Does anybody know where I can check if my plans seem reasonable or doomed to failure or has anybody built a similar pond? Thanks.
A standard masonry retaining wall (good for about 1.8m of soil) would be;
You have a wide asymetric footing (to oppose the twisting force), which is reinforced. The reinforcement is tied to vertical bars which are tied to a mesh in the 100mm cavity of a brick / block wall. Bricks and blocks are tied together to form the wall. The cavity is then filled with concrete.
GTDNB said:
7 newton blocks laid on their sides OR laid on edge tied to outer skin of standard bricks.
you can see lots of builds with pics here:
http://www.koimag.co.uk/forum/your-pond-build.html
will you be lining it with EPDM/butyl or GRP?
100 wide 7N on their side here too - with an extra course of facing brick around it. Loads of wall ties!you can see lots of builds with pics here:
http://www.koimag.co.uk/forum/your-pond-build.html
will you be lining it with EPDM/butyl or GRP?
Did I mention ours hasn't been filled with water yet...?
GTDNB said:
7 newton blocks laid on their sides OR laid on edge tied to outer skin of standard bricks.
you can see lots of builds with pics here:
http://www.koimag.co.uk/forum/your-pond-build.html
will you be lining it with EPDM/butyl or GRP?
Funny you should mention that magazine, this is our pond on the front cover!you can see lots of builds with pics here:
http://www.koimag.co.uk/forum/your-pond-build.html
will you be lining it with EPDM/butyl or GRP?
http://www.koimag.co.uk/magazine/issue/136-summer-...
It's a good read and shows the contruction diary.
danyeates said:
The pond is about 2 metres deep. Don't know how much water is in there, it's been estaimted at 30,000 gallons but I don't know if that's accurate at all!
If you dont know that how did you spec your filters and flow rate? And what about if you need to add a treatment to the pond?Boosted LS1 said:
Well, it seems to be that an inner wall of concrete breeze blocks and an outer wall of brick will do the trick. In fill between them with a concrete mix. Or use a double course of bricks tied together. Both methods have worked on similar ponds.
Thats exactly how im building mine, 7N 100mm concrete blocks (they weigh 7.5KG each)and an outside skin of brickwork in the places it can be seen and the edges that run along the fence line then its a double block, all tied together obviously and if you do build it with a small cavity then filling it with concrets/soil wouldnt do it any harm This is my construction thread here, http://www.pond-life.me.uk/forum/viewtopic.php?f=9...
Im currently building the blockwork as weather allows.
headcase said:
Thats exactly how im building mine, 7N 100mm concrete blocks (they weigh 7.5KG each)and an outside skin of brickwork in the places it can be seen and the edges that run along the fence line then its a double block, all tied together obviously and if you do build it with a small cavity then filling it with concrets/soil wouldnt do it any harm
This is my construction thread here, http://www.pond-life.me.uk/forum/viewtopic.php?f=9...
Im currently building the blockwork as weather allows.
SOrry to be a miserable sod but.... I hope you never want to sell your house.This is my construction thread here, http://www.pond-life.me.uk/forum/viewtopic.php?f=9...
Im currently building the blockwork as weather allows.
I'm not being funny but you appear to have used a large proportion of your back garden for the pond?? Maybe other space though??
I'm a fan of ponds but one that size, in that garden would put me right off.
The 2m deep job pictures above is splendid btw. It's bigger than some swimming pools!
Boosted LS1 said:
^Good build link.
The builder laid the first row of bricks this morning and we've decided on a double course of bricks tied together and finished off with double bullnosed bricks on top. Should be finished in a couple of days .
Take some photos, id be very interested on its progress The builder laid the first row of bricks this morning and we've decided on a double course of bricks tied together and finished off with double bullnosed bricks on top. Should be finished in a couple of days .
nice to see you on the koi forum, boosted.
danyeates said:
Funny you should mention that magazine, this is our pond on the front cover!
http://www.koimag.co.uk/magazine/issue/136-summer-...
It's a good read and shows the contruction diary.
stunning pond - i recognised it as soon as i scrolled down and saw the first pic. may i ask who did the fibreglassing for you? http://www.koimag.co.uk/magazine/issue/136-summer-...
It's a good read and shows the contruction diary.
As there are a few pond people on this thread can I ask if any of you have ever seen an unobtrusive way of fully netting a pond? Problem I have is not herons, although they are around but mink! I kept losing fish 'til I saw one of the blighters robbing my pond...
So new pond built in the autumn, 10' dia x 4' deep 1500 gallons/6500 ltrs. I'm thinking of gluing some hook-eyes under the lip of the slabs with resin onto which I can hook some guy rope rubber elastic over which I can stretch the fine net. Any ideas?
My new pond.
So new pond built in the autumn, 10' dia x 4' deep 1500 gallons/6500 ltrs. I'm thinking of gluing some hook-eyes under the lip of the slabs with resin onto which I can hook some guy rope rubber elastic over which I can stretch the fine net. Any ideas?
My new pond.
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