I have bought a centre pole sun shade (a Doppler Sunliner) for my balcony, along with a hollow base filled with water for it to stand in, which works fine. But as soon as there is a tiny bit of wind, the sun shade starts rotating. How do I prevent this?
As far as I can see, the base I bought does not have any mechanism in place to prevent rotating (the hole into which the pole is inserted is a plain cylinder with a smooth bottom). There is a possibility to tighten the grip around the pole through tightening a screw of sorts but this does not seem enough. The instructions for the sun shade state that if there is wind the sun shade should not be used, but it seems silly to stow it away even at the slightest hint of wind, which is sadly enough to send it spinning.
So far we make do with a system of ropes and carabiner hooks but I wonder if anyone has any other suggestion on how to prevent the sun shade from spinning in its base.