The pb had guy come out to do spray deck approx. 2 moths ago. I noticed it has washed away almost in any area where water drains and has obvious lines where you can clearly see the original sand color and almost white areas that have washed off. Bar area where extends over concrete also shows severe line. Pb said I can get touch up paint but these are huge areas and with rain, swimming it will be non stop job! Can I switch to different decking now like flagstone or is it to late?