I have constructed/maintained/repaired many pools large and small professionally and may be able to point you in the right direction but require more information (a) is your pool inside or out (b) when was it built (c) what is its construction (d) how is it waterproofed (e) what is its size (f) level deck or channels (g) what finish does it have at the moment and when was it applied (h) is there a problem (leak or other) (i) what are you trying to achieve and (j) what is your budget.