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Hello Juicers,

One of my regular garden maintenance clients has asked me to quote to raise the height on one edge of their pond. I've not done any pond work before and while the job looks straightforward I wanted to check with some of you who may have done this a few times. Pond currently has a liner and is surrounded by large 3ft x 1ft rockery stones building up the edge. The job is to remove stones from about two metres of the edge, build up the groundwork under the liner to increase the height of pond edge by 10-15cm or as much as liner allows and then replace stones.

The client says I should use post-mix to raise the height of the groundwork which doesn't sound right. I assume once the post-mix sets the liner could be perforated as it would be between a stony post mix and some rather heavy rockery stones. Surely it would be better for me to build up the area using a clay soil? Any advice apprieciated.




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  • I've not done much with ponds .but Yes post mix does have sharp lime stone chipping in , it common to use carpet or rubber mat between a pond liner and the soil etc so you could use it and speed the job up. Clay woud be fine and the perferred choose in my opinion or builders sand or cement made with builders sand. The stones on top of the liner and the water is what holdsthe liner in place.   

    • PRO

      Is there a fleece under the existing liner or could you add some it usually helps stop the liner getting perforated . 




  • PRO

    Thanks for the tips guys. Good shout on the fleece as a potential buffer between the liner and a concrete / sand mix. I'll check next week when im with the client.

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