Seriously, if you see these as a cheaper alternative to the playtpus system leave them where they are on the shelf. I'd rather slash my wrists than waste my time with these again.
The catch on the ratchet system is so, so pitiful. There is no real way to hold the rathcet as you tighten the system, its just hit and miss if the tooth catches. Yes, on a nice hard flat surface i imagine it would be ok, but when you are struggling at ground level on soils not the case.
Even when you manage to get the thing nice and tight and the tooth to catch heres what happens. If your tree is exposed to wind a good rock can unsettle the tooth and hey presto your anchor is useless. Im not talking pulling the thing about with a strap attached to a digger, just moving the trunk by hand....
In short, pitiful. Avoid at all costs.
Thanks for that. I've been looking into tree anchors lately. Platipus is the only one offered by two of my suppliers, Green-tech and ALS.
Any other experiences with alternative tree anchors anyone?
Better method in my opinion. I use Gripple tensioners with galv cable passed over a picture frame, on top of the root ball. This allows for a much slimmer profile and easier to disguise with a layer of bark, but still accessible should re-tensioning be required.
For the anchors, 4 no 600mm mild steel angle iron, driven into base of the planting holes at an angle to the tension. Do take care of underground services using this method. If services are present then use sleeper or kerb deadmen placed in the bottom of the planting hole