His tech just wanted to try turning up the RPM's on the pump to see if we really needed/wanted the blower. He didn't seem to think a blower was necessary. It did increase the water pressure a little bit but not as strong as we would like it plus there are no bubbles. I think the next thing he wants to try is possibly a smaller blower but he wanted to check with the builder first. I'm leaving to go out of town tomorrow but I will try your test with the clear tubing when I get back from vacation. Thanks for all your help!What is the builder doing to fix the problem?