I replaced my old whisperflow pump about a month and a half ago. My electric bill was running about $400 in the summer months so I went with an Intelliflo VS pump and have it running on speed two for 4 hours and speed 3 for four hours each day. I was excited to get my bill today being that it would be the first full month with the pump. I was shocked to get my highest bill ever at $565.00, especially considering that we were on vacation and no one was home using electricity for 3 weeks out of the month. I am completely at a loss of what to do. Has anyone ever experienced this?