Not only once. But more than once , our downpipes were damaged by both former and current tenants with their careless use of line trimmers and mowers. Very frustrating.
We are planning to eradicate grass around the downpipe and put gravel to replace those grass , making it unnecessary to mow near the downpipes
(At this moment , on budget so can't pour concrete path)
So here's an idea we are thinking..:
1) Pluck all grass around the downpipe
2) Put a weed mat over the dirt
3) The no-grass area will be like a circle surrounding the downpipe
4) Place an edging
5) Put some gravel in

However it's our first time doing things like this.
1) What kind of edging in Bunnings has holes allowing rainwater to drain away?
We found one:
https://www.bunnings.com.au/whites-350mm-x-10m-green-pvc-classic-garden-edging_p3321032
Is this edging suitable?
2) What tools do we need to get from Bunnings to pin down + tie both ends of the edging?
We want to make them circles encircling our downpipes.
(Our mate suggests us to make gravel path but that will be for later, as the perimeter around the house is not small. It will require more time and effort. Now we just want to start with smaller coverage first, multiple circles around those downpipes)
Thank you very much for any product recommendations.