[Closed] which pond liner?

[img] [/img]

the bit to the right is gonna be a boggy section for plants and can be a seperate liner or a part of the whole liner

Butyl is best - lasts better. Need a soft underlay first.

I can't begin to imagine how you are going to fold a liner into that shape. Have you looked at something like [url= http://www.swelluk.com/pond/pond-paint-and-sealant-56/pond-paint-285/bondaglass-g4-pond-paint-black-726.html ]this?[/url]

I can't begin to imagine how you are going to fold a liner into that shape.

Hmm, we were wondering the same! Lots of pleats, slowly fill with water and from inside the pond.... we guessed?#@$%&*!;

Top recycling from inspection pit to pond. Couldnt you simply plaster the inside with waterproof cement? Our old water tanks were water tight built that way.

[img] [/img]

[img] [/img]

http://www.kabuildingproducts.co.uk/page_2350337.html

This tanking slurry is pretty good, used it a few times and it's performed well and reasonably priced at RJ builders.

Not meaning to question your handy work if you built it, but are you sure that if you paint/seal it, that top course will take the water pressure ? I reckon you'll have a reasonable amount of pressure there if you take the water level to the top, and the top course in a single skin can be fairly weak - God knows I've kicked a few over accidentally as I've tripped over them ! It does look fairly solid though - it just would be disastrous if it failed.

Butyl liners are best, get some old carpet and drape round inside of pond,then work your liner as said filling as you go, you will have a lot of creases and wasted material so make sure your price is large enough in the first place, a lot of the koi guys build them and fibreglass the walls but this would be overkill for a wetland / Nature pond unless your gonna keep koi ......

If so sell all your bikes for you will need the cash for all the filters/aireators/media/ pump etc etc etc

It's a labour of love and I'm not in love with my pond anymore !!It's a complete Pita

Cheers for your advice.

The pit walls and base are solid. To create the pond shelves I used the concrete panels from the dismantled garage as the verticals, and then back filled with rubble and as an afterthought I skimmed over the top of the rubble with some mortar. Whilst it looks (and hopefully is) solid in the pictures I reckon the weight of 3000+ litres of water would cause some small shifts in it and hence my preference for a liner.

My best so far is £170 for a 6m x 4m butyl plus the underlay.

Maybe if I collected all the unused innertubes on STW I could patch them all together into my liner!

To get take the stress off the corners and creases I'd line it with sand - softening and rounding the shapes a bit and packing out all the right angle corners and drops. Turn all those verticals in the lower steps into slopes

It used to be a bit of a family ritual digging a pond when I was growing up - at one point the garden was pretty much a network of 2ft wide paths with water in between.

So... rubber or EPDM, that is the question... £190 for rubber, £130 for EPDM both available locally.

Qwerty, i got mine from fawcets liners. They specialise in indutrial grade liners that are far better than the standard off the shelf stuff. Pretty reasonable too!

When I was speccing formal pond construction I'd always sandwich the liner between a blockwork shell and the finished facework (eg concrete screed on base, engineering brick walls). It's more complex to build but IMO gave a much better finish, and also protected the liner from damage & UV degradation meaning longer life of the pond - you only want to build it once.

Also for complex shapes some suppliers will make up a welded liner to fit (more or less) so you get rid of a lot of the folding/pleating issues.

So... rubber or EPDM, that is the question... £190 for rubber, £130 for EPDM both available locally.