Hi everyone, This is about a wood deck in our new home. Moved here last year and the deck was in a very poor condition after the winter, it definitely got ignored by us over the winter amid the chaos of moving, but quite sure that previous owners also had not been looking after it very well. Its like 4-5 years old, so there was not much/any damage, it was just coated with dirt and slippery with algae/mildew in lots of places. A month back I cleaned thoroughly and oiled and it looks much improved, no more slippery and I could see the wood. It has been re-oiled. But I have noticed that water pools in the middle on many of the boards. May be it was not installed correctly or it has bowed in the middle following the contour of the garden? In summers pooled water dries quite fast but in winters its there for a long time. Can I drill few holes, 1-2 in each groove where water collects? I will treat the hole with the decking oil I used on the surface, can do 4-5 coats. Think that should prevent the rot to start from the holes. But I am concerned that it might affect the strength of the board? Attaching a picture of the problem.