> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.woodblocx.co.uk/sitemap.xml
> Use this file to discover available pages before exploring further.
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# What should I put under my pond liner to protect it from damage?

To protect your pond liner from any damage, use old carpet, underlay or bubble wrap before installing the liner inside your WoodBlocX pond. Search the internet for 'Pond Liner Underlay' to find your best local option. 

Pond liner underlay is a crucial protective geotextile layer, typically made of polypropylene or polyester, designed to protect pond liners from punctures caused by sharp stones and roots.

![](https://storage.crisp.chat/users/helpdesk/website/-/9/9/e/8/99e85b04a8366000/pond-build-hq-232-f_bbp4tg.jpg)