Thank you! Yeah I like to see different designs from the builders to get ideas. Ultimately it will come down to which builder I like best, as any of them can re-create a design we like. Because of this forum, I am kinda biased towards Pentair equipment..lol. I think 2 of the builders use Pentair by default and at least one said they can use whatever equipment we request. The others all either use Jandy or Hayward and didn't sound like they could/would use Pentair. Oh...where can I get the TFP tester? Do I need to test my tap water prior to fill up?I agree with you on #1! That and 2 are the best for the very reason you state. Now remember that you can show that to the other two PB and see what they can do for you. Make sure to get a list of equipment WITH modal numbers from every one so we can help with that as well.