Hi Paula
This really is a strange one! The fact that you have a President , good or bad, tells us that the Urbanisation has been handed over to the owners, if this is the case why are you still on builder´s water. Is your electricity by meter or is this also on Builder´s supply?
Your President, or the Administrator (who you are paying out of your fees) will know if you have the Certificates of Habitation and I suggest, if your President is unresponsive (why?) that you contact the Administrator as soon as possible. The pool you mention, is it your own or is it a Communal pool?
"There is a pool but not sure if the water has been changed, if it has been changed it would only be once."
I would agree that the builder billing you for water is illegal, and also agree that unless you have a meter there would be little you could do about it as you do not want the supply cutting off! I do think you need legal advice over this as the others say your bill from the builder is excessive (I too live here full time and mine is less than 200 per year) and you need to query why you are being billed for a leak that is surley the builder´s fault as he laid the pipes!
Hopefully, you can get this sorted out.