Hi Jamcha, would you please share with me what I should expect to pay per square foot with good travertine pavers? I am afraid that my PB is up charging me big time on everything.....for example, the IntelliPH system, parts plus installation, they want $1750. So, I asked them to consider lower it because I thought it was an outrageous quote. They did not budge...so I called the sub contractor who did the plumbing, and electric for the pool, and asked them if they work with home owner directly. The main guy said "sure! Just let me know when you want me to send the people to come out and install for you." He said he would charge me $250!!!! And my PB wants $1200 to install (since the system is about $550)....so, if you can give me some ideas of how much I should be looking at as a reasonable charge, I really appreciate it. Also, do they have to pour the sub base in concrete?