Thanks a lot for the wonderful answers to my questions and also few in depth research on my page, so for example, I have choosen a keyword for example 'sodium bisulfate pool' for better optimization, do I need to increase the density of that keyword overall in title,description, url and interlinking pages, and after making such changes to the particular page what is the next step should i have to perform to see if the things are going positive, how much time would it take to see the results after fetch as google clicked, another how do I observe things are negative not in my favor, these are common question but i m new to this so if you please reply as you replied before giving example taken from my products. (e.g. sodium bisulfate)
I have made some changes as per your sugguestion, could you please check little bit of my interest so I can get confidence. -> http://waqaschemicals.com/site/sodium-bisulfate-pool/