Efflorescence advice

[Canski]

Is that membrane permeable ?

[Conor]

22 minutes ago, Canski said:

Is that membrane permeable ?

Was thinking the same. Woven weed membrane.

[Steve06]

Yes it is permeable, terram matting. 

[Canski]

19 hours ago, Steve06 said:

Yes it is permeable, terram matting. 

Ahh I used DPM for mine to prevent the water soaking through the wall. 

[Steve06]

https://geotextilemembranes.co.uk/blog/post/why-do-you-need-geotextile-membranes.html

 

Please remove this link if not permitted. Does this not stop pressure building up against the wall? 

Edited March 14, 2024 by Steve06

[saveasteading]

1 hour ago, Steve06 said:

Does this not stop pressure building up against the wall? 

No. Geotextile is permeable. Its function is to keep muck and clean stone separate. The pressure is reduced by having weep holes through the wall.

[Steve06]

Looking at this image with the following, should I be able to sleep at night:-

 

a) 3ft high x 40ft wide retaining wall to the left, with the permeable matting. 

b) 2 ft width of backfill up against the garden slope. 

c) 5 x weep holes. 

 

Thank you very much 🙏🏻

 

 

 

[saveasteading]

The gravel let's the water flow to the weepholes. So it's OK. Geotextile folded back and  between the gravel and topsoil presumably?

And relax.

[Steve06]

All this build issue only to came to light this week when I noticed the efflorescence on the rear and then following internet links I was getting VERY worried that this wall was not reinforced enough for the garden load and should have had hollow concrete bricks with metal rods.

We have since unknowingly added 3 x 900kg bags of gravel 🥺

Can I still sleep at night?

 

[saveasteading]

1 hour ago, Steve06 said:

Can I still sleep at night

Ideally there would be hollow blocks and reinforcement,  or some other stiffening. But it's not high and you are draining the water.

It will be OK.

[Steve06]

4 hours ago, saveasteading said:

Ideally there would be hollow blocks and reinforcement,  or some other stiffening. But it's not high and you are draining the water.

It will be OK.

Thank you so much, really needed to hear this. 

 

[Onoff]

14 hours ago, Steve06 said:

All this build issue only to came to light this week when I noticed the efflorescence on the rear and then following internet links I was getting VERY worried that this wall was not reinforced enough for the garden load and should have had hollow concrete bricks with metal rods.

We have since unknowingly added 3 x 900kg bags of gravel 🥺

Can I still sleep at night?

 

 

That fence shows just what can be done with old pallets 👍

 

 

 

 

 

[saveasteading]

Sudden thought. With that slope, any water teaching the gravel will travel down the slope to the return at the bottom. You must have at least one outlet there or it will build up locally.

[Steve06]

5 hours ago, saveasteading said:

Sudden thought. With that slope, any water teaching the gravel will travel down the slope to the return at the bottom. You must have at least one outlet there or it will build up locally.

Thank you, I will check once it stops raining! 

[saveasteading]

15 minutes ago, Steve06 said:

once it stops raining! 

It's the best time to check. Presumably you've had record rainfall like everywhere else. So if it's OK now it will be until the next fludde.

[Steve06]

Hi

2 hours ago, saveasteading said:

It's the best time to check. Presumably you've had record rainfall like everywhere else. So if it's OK now it will be until the next fludde.

Hi,

This is the lowest front view of the lowest panel and the side view.

Never occured to me but would it be prudent to remove the built up soil at the side to allow the blocks to breathe?

Again, thank you so much for your invaluable advise 👍

 

[Pocster]

26 minutes ago, Steve06 said:

Again, thank you so much for your invaluable advise 👍

One day someone will say that to me . On that day the world will end .

[saveasteading]

32 minutes ago, Steve06 said:

would it be prudent to remove the built up soil at the side to allow the blocks to breathe

I don't think it matters. That's an outlet on the left and so water won't rise above that.