"Is this the reason our water is NEVER clear?"
It is certainly a major factor. My pond algae page is at
http://www.fishpondinfo.com/algae2.htm"How much shade can I provide without hurting the Iris and water lily?"
As long as the lilies get a few hours of direct sun and both iris and lily get 10-12 hours of indirect sun, they should do ok.
"We temporarily put the table with umbrella over there to shade it after 1 PM. The fish, well, we have had a time with those. Our filter leaked one night while we were gone, and all of them died, since the pond was drained, well, all but one, who I believe must have 9 lives, since the minute we began to refill he began breathing and is still alive today. "
The umbrella may be a good idea on really hot days. You should try to set up your filter system so that if it leaks, some water will remain. Thanks to a mastiff that moved some rocks, my pump emptied my pond two Sundays ago but because the pump is sitting up off the ground by at least a half a foot, there was water left for my fish. As long as they stay damp, fish can survive for a little water out of water as your one goldfish did.
"We have 5 goldfish, all over 5 inches, some larger, mostly Chebunkin. My ? is, WHY does one of the Chebunkin fish chase the others, he killed one doing this, I was thinking maybe he chases the females, to fertilize their eggs, who knows, any help on this would be greatly appreciated."
It sounds like your chasing shubunkin is a male. Provide some soft plants in which to lay their eggs. If there's no place soft, a male can slam a female hard enough into rocks, etc. to hurt or even kill her. I've also had females strand themselves in the very shallow parts of the pond.
"We have a great pump and filter system, just some greenish water and some hair algae, which, the Algaefix has helped some, just not the COLOR of the water, I want clear....HELP "
See my algae page that I mentioned. Good luck!