To all for all your invaluable help, my BBQ yesterday was a big success and the crystal clear pool was a big part of it !!!
I will be following the "BBB method" from now on, I just ordered the borax on-line and will be purchasing the TFT Testkits as soon as I get a chance.
Once again thanks, I didn't think the pool would make it but my guess where amazed at the clarity of the water especially the once who saw it in it's swamp phase.