Answers to your questions:


1) Curious (as too late to change), how do I measure pipe sizes is it OD or ID?

ID but usually not exact to the pipe size.

2) To reduce power cost assume I assume not worth changing this "big" pump out as less than 1 year old?

It could still be worth it. Especially if you can get a rebate from the power company. Some states offer up to $300. Even so, pay back could be less than 2 years.

3) Water circ back to pool via white plastic nozzles at sides of pool and in spa that are screwed onto the plastic pipes. Seems to me that if I removed these nozzles then back pressure would be significantly less and thus pump volume would be significantly higher and thus I could run pump less per day?

Yes, you could first try to remove them and see if your pressure gauge drops.

4) OK so removing nozzles would be unsightly, how about I just drill them out to 1" holes?

You may want to see if you can purchase new fittings first. If you cannot, then consider drilling them out. Most returns are 1", so it seems odd that they are so small.

5) Any other power saving ideas?

My guess is your turnover rate is about 3 hours? If so, try running the pump for only 3 hours a day. 6 during heavy swimmer loads.


Mark