Sorry to highjack a thread but what are consequences of a net flooding for a couple of days?
Depends on the base, and the way the carpets have been secured.
Worst case is the base structure could partially wash away, leaving an uneven playing surface once everything has dried and settled. If this isn't too bad then some remedial works to top up the base aggregate can sort things, if it is serious you may need a completely new base (which realistically means pretty much a new build)
Sometimes the carpets can lift up and settle with ripples or in the wrong place, to relay them is fairly easy.
Always over winter you should take your netting down to store it away from risk of damage from flooding and pests like rabbits (less of a risk as you have security fencing) - There is a chance an old net that already has some organic matter (moss/mould etc) on it may start to rot if exposed to prolonged periods of standing water.
Generally speaking you should be fairly OK once the water subsides, assuming you aren't close to a river and/or you don't have really sandy/loose soil below the base.