The consensus is that the artificial clay courts are at their best when slightly damp. We have now installed 4 hoses that members can use to quickly dampen the courts before play and even between sets. It should only take a few minutes but it will hugely improve the playing characteristics and reduce any slipperiness so it is well worth the time spent.
Their is a hose for each side of the court which can be switched on by turning the black valve control (it is clear to see where to turn it on). Note that if there is no water, you may also need to turn on the water supply from the upstand tap by the tree between court 5 and court 2.
Enjoy your game!