95% of the time anchoring a marquee down is very simple, just use a tie down kit with the marquee stakes knocked in to a lawn, this is very secure and the risk of underground pipes should be taken care of beforehand (generally in your terms and conditions of hire). Some companies do use a CAT detector just to be sure.
Sometimes a tie down kit isn’t suitable, this isn’t just on hard standing – there are occasions when you can’t use stakes in grass like a burial ground or even Olympic 2012 sites (who are insisting that no stakes are used).
There are 2 options, the first is to use longer guy rope style straps. These are run to an area where you can put in stakes or other secure fixing points (concreted in fence posts on a tennis court for example).
The 2nd option is to strap heavy weights to the marquee, the most popular method for this is to use water butts that can be filled and emptied on site. Always strap the water butts directly to the marquee, don’t run straps/ropes to water butts set back from the structure as you’ve given a drag factor that will slacken off any tension. You also need to ensure water butts are suitable, again on the Olympic 2012 sites water butts aren’t being allowed.
Thanks for reading.