I am in the process of building my first pond. It will be 15' X 20' X 30" oval shape. I will be using a 45 mil EPDM liner. I was wondering if you can use like 30# roofing felt for a underlayment? I dont think I will have any problems where I am putting the pond as far as roots and rock go. But just to be on the safe side I thought I would lay something like felt down.
Is it compatible with the EPDM or do I need to put a layer of sand down between the two of them?
Thanks in advance
Bart
Is it compatible with the EPDM or do I need to put a layer of sand down between the two of them?
Thanks in advance
Bart