Welcome to Koi Forum. Is this your first visit? Register
TuffX Glass
Page 1 of 6 123 ... LastLast
Results 1 to 20 of 109
  1. #1
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101

    Jason’s New pond build

    Hi, I’m a new member to the forum and have just started digging for my new pond.
    And need some advice on strength of retaining wall and walls of the pond.
    I’m building a retaining wall to hold back the garden that will be about 4-5 ft the pond will be incorporated into the retaining wall,
    I’m using 7N blocks for the wall and pond.
    I’ve seen most people just laying them down on their belly’s, that’s how I was going to do it, but now I’ve had a suggestion from another builder to use the blocks to build a cavity wall with two inch cavity that we will Fill with concrete and rebar.
    Any advise will be appreciated.



  2. #2
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    I’m not sure how to add pics at the moment if anyone can help with that too, I can get some pictures up.]

  3. #3
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    2m x 4m pond and about 1.3 deep
    Attached Images Attached Images

  4. #4
    Senior Member Rank = Hassai Wain's Avatar
    Join Date
    Jul 2020
    Location
    Rotherham
    Posts
    763
    Thanks / Likes
    1383
    Quote Originally Posted by JJLondon View Post
    I’m not sure how to add pics at the moment if anyone can help with that too, I can get some pictures up.]

    Look below Typing box

    Manage Attachments

    click on this and add from PC or folders etc on device

    Hope this helps

    You can create an Album and post photos here for people to look at without doing threads
    1000 gal
    2 x Hozelock 6000ltr 9W UV
    Allpond Spin Filter 8000 11W UV
    Blagdon pond oxy 640 ltr/hr

  5. #5
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    Thanks wain
    Attached Images Attached Images

  6. #6
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101



    Sent from my iPhone using Tapatalk

  7. #7
    Senior Member Rank = Hassai Wain's Avatar
    Join Date
    Jul 2020
    Location
    Rotherham
    Posts
    763
    Thanks / Likes
    1383
    What is that pipe running diagonally across the base of the excavation ?

    is it live ?
    1000 gal
    2 x Hozelock 6000ltr 9W UV
    Allpond Spin Filter 8000 11W UV
    Blagdon pond oxy 640 ltr/hr

  8. #8
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    It’s the pipe to the soak away, that’s what has determined my depth of the pond.
    Getting through the chalk has been so hard anyway I’m quite glade I can’t go any deeper.


    Sent from my iPhone using Tapatalk

  9. #9
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    Any thoughts on viewing window on the short width, it will measure approximately 2.3m on the outside, I want to fit an infinity window.
    Anyone have any ideas on a safe size of the window without risking the strength of the walls?


    Sent from my iPhone using Tapatalk

  10. #10
    Senior Member Rank = Jussai Spongebob's Avatar
    Join Date
    May 2020
    Location
    Manchester
    Posts
    1,281
    Thanks / Likes
    2324
    Re the blocks 'on the belly' for me, easily strong enough and already over engineered, then some, rebar is expensive and you dont need it with 7N blocks laid in that way especially with your pool dimensions.

  11. Thanks Graeme Thanked / Liked this Post
  12. #11
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    Quote Originally Posted by Spongebob View Post
    Re the blocks 'on the belly' for me, easily strong enough and already over engineered, then some, rebar is expensive and you dont need it with 7N blocks laid in that way especially with your pool dimensions.
    Thanks bob, do you think that 7N blocks on their belly are adequate for the retaining wall too? It will be about 5ft, retaining 4 1/2 ft lawn and my pond walls will tie into it.

    Thanks Jason


    Sent from my iPhone using Tapatalk

  13. #12
    Senior Member Rank = Hassai Wain's Avatar
    Join Date
    Jul 2020
    Location
    Rotherham
    Posts
    763
    Thanks / Likes
    1383
    [QUOTE=JJLondon;342642]Thanks bob, do you think that 7N blocks on their belly are adequate for the retaining wall too? It will be about 5ft, retaining 4 1/2 ft lawn and my pond walls will tie into it.

    Thanks Jason

    I built a retaining wall in my garden had a couple of friendly brickies help me as I work in construction.

    What I was advised to do was lay several length on then the next at 90 degrees to form a support/buttress on the garden side. then each layer tie this in
    placed membrane on back of blockwork and backfilled to this with gravel to allow water from garden/lawn to run along wall to points where it could drain out
    as I was told issue wasnt the ground but more the weight of water in the ground pushing against wall
    used brick to front of this block wall to make it look nice

    Hope this helps

    1000 gal
    2 x Hozelock 6000ltr 9W UV
    Allpond Spin Filter 8000 11W UV
    Blagdon pond oxy 640 ltr/hr

  14. Thanks Graeme Thanked / Liked this Post
  15. #13
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    [QUOTE=Wain;342656]
    Quote Originally Posted by JJLondon View Post
    Thanks bob, do you think that 7N blocks on their belly are adequate for the retaining wall too? It will be about 5ft, retaining 4 1/2 ft lawn and my pond walls will tie into it.

    Thanks Jason

    I built a retaining wall in my garden had a couple of friendly brickies help me as I work in construction.

    What I was advised to do was lay several length on then the next at 90 degrees to form a support/buttress on the garden side. then each layer tie this in
    placed membrane on back of blockwork and backfilled to this with gravel to allow water from garden/lawn to run along wall to points where it could drain out
    as I was told issue wasnt the ground but more the weight of water in the ground pushing against wall
    used brick to front of this block wall to make it look nice

    Hope this helps

    Thank you wain,
    When you say “lay several length on”what do you mean?

    Jason


    Sent from my iPhone using Tapatalk

  16. #14
    Senior Member Rank = Hassai Wain's Avatar
    Join Date
    Jul 2020
    Location
    Rotherham
    Posts
    763
    Thanks / Likes
    1383
    Sketch below
    Attached Images Attached Images
    1000 gal
    2 x Hozelock 6000ltr 9W UV
    Allpond Spin Filter 8000 11W UV
    Blagdon pond oxy 640 ltr/hr

  17. Thanks JJLondon Thanked / Liked this Post
  18. #15
    Extreme Koi Member Rank = Nisai harryc's Avatar
    Join Date
    Nov 2011
    Posts
    72
    Thanks / Likes
    53
    Quote Originally Posted by JJLondon View Post
    Thanks bob, do you think that 7N blocks on their belly are adequate for the retaining wall too? It will be about 5ft, retaining 4 1/2 ft lawn and my pond walls will tie into it.

    Thanks Jason


    Sent from my iPhone using Tapatalk
    Would be more than strong enough I have the same set up, some on here go to nuclear bunker standards for some reason, with rebar etc etc

  19. #16
    Senior Member Rank = Mature Champion dbs's Avatar
    Join Date
    Jul 2020
    Location
    East Norfolk
    Posts
    2,142
    Thanks / Likes
    3485
    I am new to the forum too, just in the planning stage of mine so pleased to see another starting that I can follow the progress

  20. Thanks JJLondon Thanked / Liked this Post
  21. #17
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    Quote Originally Posted by harryc View Post
    Would be more than strong enough I have the same set up, some on here go to nuclear bunker standards for some reason, with rebar etc etc
    Thanks Harry,
    Reassuring, I get so many people scaring me, one said yesterday I need to have a steel frame welded around he top of the pond to hold the walls in, nuclear bunker springs to mind


    Sent from my iPhone using Tapatalk

  22. #18
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    Quote Originally Posted by Wain View Post
    Sketch below
    Thanks so much wain, that’s really helpful.
    I’ve been digging out all yesterday and don’t look much different. Back at it soon. I’ll get a progress pic up later.
    Thanks fir your help

    Jason


    Sent from my iPhone using Tapatalk

  23. Thanks freddyboy Thanked / Liked this Post
  24. #19
    Senior Member Rank = Kyusai Sim's Avatar
    Join Date
    Nov 2018
    Location
    Berkshire
    Posts
    912
    Thanks / Likes
    1437
    I would redirect the soak away pipe around the pond if it was me, I would build over it when it’s easy to move.

  25. Thanks JJLondon, freddyboy Thanked / Liked this Post
  26. #20
    Member Rank = Nisai JJLondon's Avatar
    Join Date
    Jul 2020
    Location
    Hemel Hempstead
    Posts
    67
    Thanks / Likes
    101
    Quote Originally Posted by Sim View Post
    I would redirect the soak away pipe around the pond if it was me, I would build over it when it’s easy to move.
    Yeah good point Sim, it would be easy to redirect it around the pond, that way I could go a bit deeper to account for the base slab.
    I might take a look tomorrow to see how much extra work is involved, I’m sick of digging right now.

    Jason


    Sent from my iPhone using Tapatalk

  27. Thanks freddyboy Thanked / Liked this Post
 

 
Page 1 of 6 123 ... LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT +1. The time now is 04:16 PM. Online Koi Mag Forum
Powered by vBulletin® Version 4.2.3
Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.

vBulletin Improved By vBFoster® (Lite Version), © UltimateScheme, Ltd.