Frustration and Anxiety are getting to me

[webfeet]

My deck has reddish streaks from red sand put in concrete mixture. I called the concrete company the PB used and they said that red sand is all they have. Then I called another local concrete company in town, and they use a light beige sand- what you think of as being a sand color. Shouldn't the builder be responsible for providing me with a solid colored plain concrete deck that is at least all the same color??? I started a thread asking for help with the red streaks, but I don't know if any one has any ideas or not. I am afraid muratic acid may make it worse. I don't know anything about acid wash.

I am very unhappy with the streaky deck. What is more, I still have to deal with PB concerning the unlevel liner issue. I am waiting until he finishes everything else and then I will address liner, and deck, if he has not corrected the problem. He was suppose to have finished two days ago. He hasn't showed up the last 2 days. My bloodpressure is up. Since the PB also does the stamped concrete finishes, I wonder if he thought the red streaks would get me to buy the stamped work? I think he should make the deck all one color at his expense. But I don't want red- its the color of rust.
Am I unreasonable? Please tell me.
Furthermore, I'm worried about the ground settling. He claims the deck is floating on the concrete sand and will not crack. I think the sand will settle. Right now, there are only hairline cracks at the corners of pool, only appear to be surface. But I have nightmares about large cracks that swallow me up!
On a positive note, I still owe him about $6000.00 minus any deducts for the deck and liner. Exasperated ( misspelled?) Web