I will be installing a system with 13mm dripline off a bore, many part of the line will then be buried under gravel or mulch etc, I dont want issues with the standard plastic poly ratchet clamps coming off.

I found this product below, does anyone have any experience with them

http://normagroup.com/kunden/norma/ttw.nsf/res/NORMACLAMP_COBRA__en.pdf/$file/NORMACLAMP_COBRA__en.pdf


Standard Clamps here
Poly Ratchet Clamps by Irrigation Store


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